1st Semester www.wsr.k12.ia.us/srhigh/PhySci.htm 1 2 Personal Data Sheet Student name: ________________________________ Student email: ________________________________ Home phone number: ____________________ Parents’ names: ________________________________ Siblings’ names: _________________________________ School-sponsored sports/activities you are (or are going to be) involved in: __________________ ___________________ _________________ __________________ ___________________ _________________ Outside jobs/activities you are involved in: __________________ ___________________ _________________ __________________ ___________________ _________________ Hobbies/Interests/Talents you have: __________________ ___________________ _________________ __________________ ___________________ _________________ What is the best thing that anyone has ever done for you? _____________ _________________________________________________________ _________________________________________________________ What is the best thing that you have done for someone else? ___________ _________________________________________________________ _________________________________________________________ List at least one goal for this class that you have set for yourself: _______ _________________________________________________________ _________________________________________________________ List at least one goal you have for your life or future that you have set for yourself: __________________________________________________ _________________________________________________________ What is your attitude towards school in general and why? ______________ _________________________________________________________ _________________________________________________________ 3 What is your attitude towards science and why? ____________________ _________________________________________________________ _________________________________________________________ I learn best when: ___________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ When faced with a challenge, I _________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ What expectations do you have for your teacher? ___________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ I think it is important that you know this about me: __________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ This area is for your parent to fill out if they have anything they would like to add: _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________ Student signature ______________________ Parent signature 4 Lab Partner Thermometer 100o 80o 60o 40o 20o 0o 5 Physical Science Dirty Duty One per semester In encouraging the pillars of responsibility and citizenship, you will be asked to provide assistance in the classroom. You must perform one “dirty duty” each semester. This “dirty duty” is worth points! If you do the duty, you get the points. No duty, no points! There are several ways you can achieve your dirty duty. You can bring in one of the items on the supply list, or perform one of the items on in “room” list, or complete something in the “other” category. There will be times when I announce a possibility of a dirty duty during the year that are not listed on this sheet. The point of this is not to “buy” your grade – there are plenty of duties that will cost you nothing! Choose the dirty duty that best fits your needs and interests. Supplies: 1 box Kleenex 1 box corn starch 1 box gallon storage bags (ziploc) 1 box #2 pencils 1 package balloons 1 package plastic spoons 1 box baking soda 1 plastic bottle of vinegar 1 package small Dixie cups 1 bottle white Elmer’s Glue-All 1 small, cheap calculator 1 roll aluminum foil 1 package Pickling salt Others as announced Room: 1 cleaning of an animal enclosure tank 1 cleaning of the room (lab areas) Designing and putting up one bulletin board 1 time recycling newspaper, white paper, etc in the room Watering plants in the room for a week Cleaning the board after school for a week Covering 3 classroom textbooks 1 time assistance in setting up a lab experience others as announced in class Others: 1 videotaped science program over Physical Science concepts (no commercials and pre-approved) Various other tasks as announced during the semester 1 Physical science lab experience researched and written up Bringing in a science reading book or magazine covering concepts we have talked about in class Others as announced in class 6 What Do Ya Know? Think you know the English system of measurement? Let’s find out!!! Length There are _______ inches in one foot There are _______ feet in one yard There are _______ yards in one mile There are _______ feet in one mile Weight There are ______ ounces in a pound There are ______ pounds in a ton Volume There are ______ cups in a pint There are ______ pints in quart There are ______ quarts in a gallon There are ______ quarts in a peck There are ______ pecks in a bushel There are ______ drops in a teaspoon There are ______ teaspoons in a tablespoon There are ______ tablespoons in a cup There are ______ fluid ounces in a cup Now try these: A baby is born weighing 6 pounds, 8 ounces. What is the total weight in pounds? (hint this will be a decimal starting with 6.????) I am 76 inches tall. What is my height in feet? (Again, your answer will be a decimal) My can of Coke has 15 fluid ounces in it. How many total cups is that (decimal again!) How many miles tall are you? I am going to make some hummingbird food. My feeder will hold 4 cups. The directions say to put in one teaspoon for each ounce of water. How many ounces will my hummingbird feeder hold? How many scoops should I put in? 7 8 Measurements and Graphing Unit Chapter 1 Pgs 1-32 Notes from Chapter: 9 SI Base Units Quantity Length Mass Time Electric current Thermodynamic temperature Amount of substance Luminous density SI Derived Units Quantity Area Volume Density Frequencey Force Pressure Energy Power Electric charge Electric potential SI Prefixes Prefix GigaMegaKiloHectoDeka-----DeciCentiMilliMicroNano- Unit meter kilogram second ampere Kelvin mole candela Unit square meter cubic meter kilograms per cubic meter hertz Newton pascal joule watt coulomb volt Symbol G M k h da --d c m µ n Meaning billion (109) million (106) thousand (103) hundred (102) ten (10) ---------------tenth (10-1) hundredth (10-2) thousandth (10-3) millionth (10-6) billionth (10-9) Symbol m kg s A K mol cd Symbol m2 m3 kg/m3 Hz N Pa J W C V Multiply Unit by 1,000,000,000 1,000,000 1000 100 10 --------------0.1 0.01 0.001 0.000001 0.000000001 10 Name __________________ Period ______ Science of Learning Lab Background: We have mentioned that everyone has strengths and weaknesses about the way they learn. You are going to do a lab to help you identify your own strengths and weaknesses. Remember, there is no one “right” answer and no “best” way to be! Supplies: Bag of descriptions Procedure: 1. Sort through the cards in your bag and separate them into two piles. One pile describes you and the other pile does not. 2. Put the “unlike me” pile back into the bag 3. Flip the “like me” cards over and write down the number of: Circles _______ Squares _______ Rectangles _______ Stars ________ Hearts ______ Ovals _______ Triangles _______ Happy faces ________ 4. On the back of this paper, make a BAR GRAPH showing your results. Conclusion questions: 1. Using the key provided and the class discussion, what area on the graph appears to be your strength? 2. Does your strength seem accurate to you and why? 3. What area is your weakest? 4. What are some things you could do to help accommodate for your weakness area? 5. Do you think your strengths and weaknesses will change as you get older and why? 11 12 Name ____________________ Hour ______ Graphing Lab Report Physical Science Background: Review the types of graphs in your textbook Chapter 1 and in the skills section in back of the book. Fill in the blanks below regarding the types of graphs: 1. A line graph shows: _________________________________________________ 2. A bar graph shows: __________________________________________________ 3. A pie graph shows: __________________________________________________ Procedure: Write two survey questions. You will graph the results of BOTH questions. One must be a pie graph; the other can be your choice of graph. You will survey at least 20 people of each question. Question one: ______________________________________________________ Question two: ______________________________________________________ ___________ teacher initials Lab: Write your two questions, keeping in mind what type of graph you will be creating. Have your teacher initial your questions to make sure they are appropriate. Ask your survey questions to at least 20 people each. Keep track of who you ask! Do your two graphs (one must be a pie graph) Answer the conclusion questions. Questions: 1. What type of graph would best represent the number of deer each year for the past 10 years? 2. What type of graph would best represent the number of A’s, B’s, C’s, and D’s received by a class on a science test? 3. What type of graph would best represent the temperature of the classroom each hour for the past 12 hours? 13 4. What type of graph would best represent the percentage of freshman involved in football, volleyball, cheerleading, and cross country? 5. What are the lines that divide up a line graph called? (already answered for you) Hatch 6. Which type of graph can best help you predict the answer to information you never tested. (hint: use logic – this isn’t in your book!) 7. Write and solve the equation for how I would know how many degrees to make the part of the pie graph in this case: 73 out of 147 adults polled drive a car to work each day. 8. In a line graph, which variable goes on the x-axis? 9. In a line graph, which variable goes on the y-axis? 10. Is the x-axis horizontal or vertical? 14 15 16 Is This Science or Math?? Conversions between English and SI Units can be messy, but until we are all in the same unit, they remain necessary. Planning a trip to Europe one day? Maybe Canada? Planning on using the Internet for research? Chances are, you are going to bump into SI units and you will need to know how to convert them into something you are familiar with… To change . . centimeters centimeters kilograms kilograms kilograms kilometers liters liters meters miles millimeters ounces pints (US) pounds pounds feet feet gallons (US) grams inches tons (US) yards Celsius Fahrenheit into . . feet inches ounces pounds tons (US) miles gallons (US) pints (US) yards kilometers inches grams litres kilograms ounces centimeters meters liters ounces centimeters kilograms meters Fahrenheit Celsius do this . . Divide by 30.48 Divide by 2.54 Multiply by 35.3 Multiply by 2.2046 Divide by 907 Multiply by 0.6214 Multiply by 0.2642 Multiply by 2.113 Divide by 0.9144 Multiply by 1.609 Divide by 25.4 Multiply by 28.35 Multiply by 0.4732 Multiply by 0.4536 Multiply by 16 Multiply by 30.48 Multiply by 0.3048 Multiply by 3.785 Divide by 28.35 Multiply by 2.54 Multiply by 907.2 Multiply by 0.9144 (C + 40) x 1.8 - 40 (must do all steps) (F + 40) ÷1.8 - 40 17 Directions for using the stairstep diagram. Start on the step of the unit you have, then count the steps to the unit you want. Move the decimal according to the direction! KiloMove decimal place to the RIGHT HectoDeca- meter liter gram UNIT DeciMove decimal place to the LEFT CentiMilli- Memory Hook: King Henry Died; U Didn’tbetween Care Much Conversions English and Metric 18 Name ___________________ Hour______ Physical Science Directions: Change these units from English to Metric or Metric to English. You need to write down your work; however, you may use a calculator to do the math. 1. 12 inches = ____________ cm 2. 8 pounds = ______________ kg 3. 2.2 liters = ____________ gal 4. A patient weighs 120 pounds and needs to take medication. The directions say to take one pill for every 15 kg of weight. How many pills will the patient take? (Round to the nearest pill) 120 pounds = __________ kg 5. My can of Coke weighs 12 ounces. How many g is this? 12 fl oz = ___________g 6. A baby weighed 6 pounds, 11 ounces at birth. How much did he weigh in kg? (This is a hard one!) 7. You have to run an 8 km race. How many miles is that? 8 km = __________ miles 8. The speed limit in France is 125 km/hr. How fast is that in mph? 125 km/hr = ____________ mph 19 9. It is 35 degrees C outside today. What is that in degrees Fahrenheit? 35o C = __________ o F 10. The normal human body temperature is about 99 F. What would that be in C? 99 o F = __________ o C 11.- 12. What is your height in inches? _____________ What is your height in meters? ____________ 13. 2 liters of Pepsi is how many gallons? 2 L = __________ gal 14. You run a 100 meter dash. How many yards is that? 100 m = __________ yds 15. I bought one ton of sand. How many kg did I buy? 1 ton = __________kg 20 Metric to Metric 1. 1000 cl = _____ L 2. 120 mm = ____ cm 3. 1200 cl = ____ L 4. 2 cm = _______ mm 5. 11000 L = _____ kl 6. 10 cl = _____ ml 7. 12000 m = ____ km 8. 8 g = _____ cg 9. 80 ml = ___ cl 10. 3 L = ____ cl 11. 2000 L = ____ kl 12. 5 cm = ____ mm 13. 900 cm = ____ m 14. 11 cg = _____ mg 15. 9000 m = ______ km 19. 1 kg = _______ g 20. 4000 ml = _______ L 21. 1 cl = _______ ml 22. 1100 cl = _______ L 23. 10000 g = ______kg 24. 2000 ml = _______ L 25. 7000 L = _______ kl 26. 70 ml = _______ cl 27. 5 g = _______ cg 28. 9 cl = _______ ml 29. 1 g = _______ cg 30. 8 kg = _______ g 31. 6 g = _______ cg 32. 6 km = _______ m 33. 30 mg = _______ km 16. 7000 ml = _______ L 17. 5 kg = _______ g 18. 60 mm = _______ cm 21 Name _________________ Hour _______ Conversions within the Metric system Directions: Convert these measurements within the metric system. You can use the stair step diagram or whatever method is easiest for you. 1. 5 m = _____ cm 2. 5 m = ____km 3. 25 cm = _____ mm 4. 25 cm = ____ m 5. 3000 mm = _____ m 6. 3000 mm = ____ km 7. 1000 g = _____ mg 8. 1000 g = _____ kg 9. _____ kg = 30,000 mg 10. ______ L = 5,000 mL 11. _____L = 50 cc (hint: 1cc is the same as 1 mL) 12. ______ mg = 2 kg 13. 500 g = _____ kg 14. 6 km = ______ cm 15. 6,000,000 mm = ______ km 22 Name ______________________ Period ______ Conversion Practice English/Metric. If necessary, only go 2 places past the decimal. Show your work for this side. 1. I measure something to be 15 inches. How many centimeters is that? 2. I buy 4 tons of rock. How many kilograms is that? 3. It is 35 Celsius degrees in your house. What is this in Fahrenheit? 4. Something has a mass of 42 ounces. How many grams is that? 5. The doctor tells you to drink .5 gallons of water today. How many liters is that? 6. 18 feet = ____________ centimeters. 7. 367 mm = __________ inches 8. 231 meters = ___________ yards 9. 18 pints = ___________ liters 10. 1 gallon = _________liters 11. 1 meter = _________ yards 12. 1 kilogram = _______ pounds 13. 1 kilometer = ______ miles ****More conversions on the back***** 23 Practice, Practice, Practice Metric to Metric 14. 1000 mg = _________ kg 15. 3456 cm = _________ km 16. 324 mL = ________ L 17. 98769 cm = __________ km 18. 84736 cg = __________kg 19. 2 km = ___________m 20. 2 km = _________ cm 21. 4563 kg = ____________cg 22. .34 km = ____________ mm 23. 7.4 hm = ____________ cm 24. 0.16 kg = ___________hg 25. 3,567,000 mg = _________ kg 24 Name ____________________ Hour ______ Using SI Units Lab Equipment needed: meter stick triple beam balance graduated cylinder Procedure: You will need to choose what unit makes the most sense in each of these situations. Decide if you should use centimeters, meters, milliliter, etc in each measurement before you actually measure! If you need help with using any of the equipment, please ask for assistance from a classmate or teacher. Length Measure the length of your pencil or pen. What unit makes the most sense? ______________ What was the length of your pencil/pen in those units? __________ What was the length of your pencil/pen in meters? _________ Measure the height of the front lab table. What unit makes the most sense? ______________ What was the height of the lab table in those units? __________ What was the height of the lab table in centimeters? _________ Measure the length of the classroom (the longest direction) What unit makes the most sense? ______________ What was the length of the classroom? __________ What was the length of the classroom in millimeters? _________ Mass (aka Weight) Find the mass of the foam apple What unit makes the most sense? ______________ What was the mass of the apple? __________ What was the mass of the apple in milligram? _________ Find the mass of your pencil/pen What unit makes the most sense? ______________ What was the mass of your pencil/pen? __________ What was the mass of your pencil/pen in kilograms? _________ 25 Find the mass of 2 jumbo paper clips What unit makes the most sense? ______________ What was the mass of the clips? __________ What was the mass of the clip in grams? _________ Volume: Find the volume of the blue liquid on the lab table What unit makes the most sense? ____________ What was the volume of the liquid? __________ What was the volume in liters? ___________ Find the volume of the red liquid on the lab table What unit makes the most sense? ____________ What was the volume of the liquid? __________ What was the volume in liters? ___________ Find the volume of a full gallon of milk What unit makes the most sense? ____________ What was the volume of the liquid? __________ What was the volume in milliliters? ___________ You in metric What is your height in meters? ___________ What is your height in centimeters? _________ What is your weight in kilograms? __________ What is your weight in milligrams? __________ 26 Name __________________ Period _____ Graphing Study Guide Choose the term from the word bank that best completes each statement. Write the term in the blank on the left of each statement. You can use a word more than once!! WORD BANK graph horizontal hatch marks vertical independent pie graphs dependent bar graph y-axis line graph x-axis percentages ________________ 1. A visual display of data or information is a _____. ________________ 2. Information that is collected by counting is best displayed on a _______. ________________ 3. In a line graph, the _____ axis is called the y-axis. ________________ 4. In a line graph, the independent variable is plotted on the ______. ________________ 5. A graph that shows information as parts of a circle is a ______. ________________ 6. The type of graph that is useful for showing trends or a continuous change is a ______. ________________ 7. Information in a pie graph is often shown as ____. ________________ 8. Information that remains constant and does not depend on changes in another variable is called the ____ variable. ________________ 9. In a line graph, the dependent variable is plotted on the _______. ________________ 10. Numbers that are left off a graph to save space be shown using lines called ______. ________________ 11. A variable that changes as the result of another variable is called a ____ variable. ________________ 12. In a line graph, the horizontal axis is also called the ________. 27 28 Name ________________________ Hour _______ Science of Learning Lab, Part two Background: You have now determined what area of Multiple Intelligence that you have. This helps you to find what might interest you or be easier for you in terms of school. You will not take a survey that will help you determine what way you like to learn information. Supplies: MBTI survey Style type information sheet Procedure: Take the survey. You will need to decide between each of TWO statements which one most sounds like you. There is no wrong or right answer to this; it will be very independent and based on what you prefer. Total up the number of checks in each of the areas and write that information here: Total of I _____ Total of E______ Highest Letter ____ Total of N _____ Total of S ______ Highest Letter ____ Total for F _____ Total for T ______ Highest Letter ____ Total for P _____ Total for J ______ Highest Letter ____ As your teacher goes over what each letter stands for, write down the ones that best describe you. Conclusion questions: 1. Were you an I or E? 2. What I or E traits (ways you process information) best described you? 3. Were you an N or S? 4. What N or S (How you like information presented) traits best described you? 5. Were you an F or T? 29 6. What F or T traits (How you make decisions) best described you? 7. Were you a J or P? 8. What J or P traits (How you organize information) best described you? 9. Write down your whole four letter code here: _________ 10. Read through the style type information sheet about you. List some of the strengths of your style type that you have: 11. List some of the weaknesses (areas for growth) from your style type that you have: 12. Does the description you read about really seem to describe you? Why or why not? 13. Look at the jobs that your personality type seems to enjoy. Are any of these careers that you are considering? Which ones? (If none, what career are you thinking of?) 30 Science of Learning Survey _____1. I like to talk to few people; usually only people I know. ____ 2. I usually keep my feelings to myself. _____3. I like to do projects by myself. OR ____1. I like to talk to lots of people; even people I do not know. OR ____2. I usually show my feelings. _____4. I usually do not know what is happening in the lives of the people at work or school. _____5. I most often think quietly before I talk. _____6. When I’m with a group of people, I most often wait for people to talk to me. _____7. It is easy for me to concentrate on homework even when the TV or radio is on. _____8. I like to think things over a while before I answer questions. _____9. I most often would like to leave parties early because I get tired. OR ____4. I usually know what is happening in the lives of the people at work or school. OR ____5. I most often talk as I am thinking. OR ____6. When I’m with a group of people, I usually start the conversation. OR ____3. I like to do projects in groups. OR ____7. I most often need a quiet place to do my work. TOTAL MARKS for I: ________ OR ____8. I most often answer questions right away. OR ____ 9. I most often like to stay late at parties because they excite me and give me energy. TOTAL MARKS for E: ________ _____1. I am usually most interested in what is possible. OR ____ 1. I am usually most interested in what is actually present or known. _____2. People would say I have more imagination. _____3. I would be more likely to trust my hunches. _____4. To me fiction is more interesting. _____5. I usually work in spurts, rest, then work again. _____6. I like to learn new skills. OR ____ 2. People would say I have more common sense. OR ____ 3. I would more likely trust my experience. OR ____ 4. To me facts are more interesting. OR ____ 5. I usually work steadily to completion. OR ____ 6. I like to practice familiar skills. _____7. I am best at expanding ideas and coming up with many solutions. _____8. Fortune tellers and horoscopes interest me. _____9. When people are around, I am very aware of body language, facial expression, body stance, etc. TOTAL MARKS for N : __________ OR ____ 7. I am best at condensing ideas and coming up with one solution. OR ____ 8. Fortune tellers and horoscopes annoy me. OR ____ 9. When people are around, I usually just hear what they are saying. TOTAL MARKS for S : _________ 31 _____1. Emotion and caring are most important to me. _____2. I usually make decision based on feeling. _____3. The circumstances around a crime are most important. _____4. I would prefer a personal note about my work from my teacher or employer. _____5. Disapproval by others really bothers me. _____6. Most people consider me to be very gentle or warm-hearted. _____7. I usually consider other people’s feelings. _____8. I dislike arguing or debating. _____9. I use lots of words to explain what I know. OR ____ 1. Ideas and information are most important to me. OR ____ 2. I usually make decision based on thinking. OR ____ 3. The laws about a crime are most important. OR ____ 4. I would prefer to know what is right or wrong. TOTAL MARKS FOR F: _______ TOTAL MARKS FOR T: _______ _____1. I like to have many options. OR ____ 1. I like to have a decision made. _____2. The act of doing a project is most important to me. _____3. I like changes. OR ____ 2. The act of finishing a project is more important to me. OR ____ 3. Too many changes bother me. _____4. I start many projects, but don’t finish them all. _____5. Sometimes I am late getting where I am supposed to be. _____6. I often wait to the last minute to do an assignment of job. _____7. I don’t like schedules or routines. _____8. I usually just let things happen in my life. _____9. I enjoy being surprised about what is going to happen. OR ____ 4. I work on a few projects at one time and usually finish them all. OR ____ 5. I am almost always on time, an even sometimes early. OR ____ 6. I usually plan ahead and finish my assignments or jobs. OR ____ 7. I like schedule and routines. TOTAL MARKS FOR P: _______ TOTAL MARKS FOR J: _______ OR ____ 5. Making mistakes or failing in front of others really bothers me. OR ____ 6. Most people consider me to be very firm or cool-headed. OR ____ 7. Many times I do not consider the other people’s feelings. OR ____ 8. I like arguing or debating. OR ____ 9. I use few words and get right to the point. OR ____ 8. I plan, organize, and run my life. OR ____ 9. I want to know what is going to happen. Suggested Careersmarks: for Your Four letter code Type Write down the four letters with the highest ____________________ This survey was adapted by J. Simpson, 1996 32 (Myers-Briggs Test) The following list is made up of recommended careers, and which careers a certain type seems to over-represent. Any type can do any job. This list is not a list of the "only jobs you can do", but simply a guide to which career utilizes the natural talents of each type. ESTJ - Military, business administrators, managers, police/detective work, judges, financial officers, teachers, sales representatives, government workers, insurance agents, underwriters, nursing administrators, trade and technical teachers, Mafia dons. Natural leaders, they work best when they are in charge and enforcing the rules. ISTJ - Business executives, administrators and managers, accountants, police, detectives, judges, lawyers, medical doctors, dentists, computer programmers, systems analysts, computer specialists, auditors, electricians, math teachers, mechanical engineers, steelworkers, technicians, militia members. Similar to the ESTJ, they have a knack for detail and memorization, but work more behind the scenes instead of up front as a leader. ESFJ - Home economics, nursing, teaching, administrators, child care, family practice physician, clergy, office managers, counselors, social workers, bookkeeping, accounting, secretaries, organization leaders, dental assistants, homemakers, radiological technologists, receptionists, religious educators, speech pathologists. They do best in jobs where they can apply their natural warmth at building relationships with other people. ISFJ - Interior decorators, designers, nurses, administrators, managers, secretaries, child care/early childhood development, social work, counselors, paralegals, clergy, office managers, shopkeepers, bookkeepers, homemakers, gardeners, clerical supervisors, curators, family practice physicians, health service workers, librarians, medical technologists, typists. Traditionoriented and down-to-earth, they do best in jobs where they can help people achieve their goals, or where structure is needed. ESTP - Sales representatives, marketers, police, detectives, paramedics, medical technicians, computer technicians, computer technical support, entrepreneurs, comedians, agents, race car drivers, firefighters, military, loan sharks, con men, auditors, carpenters, craft workers, farmers, laborers, service workers, transportation operatives. They have a gift for reacting to and solving immediate problems, and persuading other people. ISTP - Police, detectives, forensic pathologists, computer programmers, system analysts, computer specialists, engineers, carpenters, mechanics, pilots, drivers, athletes, entrepreneurs, firefighters, paramedics, construction workers, dental hygienists, electrical engineers, farmers, military, probation officers, steelworkers, transportation operatives, hitmen. With the ability to stay calm under pressure, they excel in any job which requires immediate action. ESFP - Actors, painters, comedians, sales representatives, teachers, counselors, social workers, child care, fashion designers, interior decorators, consultants, photographers, musicians, human resources managers, clerical supervisors, coaches, factory supervisors, food service workers, receptionists, recreation workers, religious educators, respiratory therapists. Optimistic and funloving, their enthusiasm is great for motivating others. ISFP - Artists, musicians, composers, designers, child care workers, social workers, counselors, teachers, veterinarians, forest rangers, naturalists, bookkeepers, carpenters, personal service workers, clerical supervisors, secretaries, dental and medical staffers, waiters and waitresses, chefs, nurses, mechanics, physical therapists, x-ray technicians. They tend to do well in the arts, as well as helping others and working with people. 33 ENFJ - Teachers, consultants, psychiatrists, social workers, counselors, clergy, sales representative, human resources, managers, events coordinators, politicians, diplomats, writers, actors, designers, homemakers, musicians, religious workers, writers. They have a gift of encouraging others actualize themselves, and provide excellent leadership. INFJ - Counselors, clergy, missionaries, teachers, medical doctors, dentists, chiropractors, psychologists, psychiatrists, writers, musicians, artists, psychics, photographers, child care workers, education consultants, librarians, marketers, scientists, social workers. Blessed with an idealistic vision, they do best when they seek to make that vision a reality. ENFP - Actors, journalists, writers, musicians, painters, consultants, psychologists, psychiatrists, entrepreneurs, teachers, counselors, politicians, diplomats, television reporters, marketers, scientists, sales representatives, artists, clergy, public relations, social scientists, social workers. Very creative and fun-loving, they excel at careers which allow them to express their ideas and spontaneity. INFP - Writers, artists, counselors, social workers, English teachers, fine arts teachers, child care workers, clergy, missionaries, psychologists, psychiatrists, scientists, political activists, editors, education consultants, journalists, religious educators, social scientists.. Driven by a strong sense of personal values, they are also highly creative and can offer support from behind the scenes. ENTJ - Business executives, CEOs, organization founders, business administrators, managers, entrepreneurs, judges, lawyers, computer consultants, university professors, politicians, credit investigators, labor relations worker, marketing department manager, mortgage banker, systems analysts, scientists. They are born to lead and can steer the organization towards their vision, using their excellent organizing and understanding of what needs to get done. INTJ - Scientists, engineers, professors, teachers, medical doctors, dentists, corporate strategists, organization founders, business administrators, managers, military, lawyers, judges, computer programmers, system analysts, computer specialists, psychologists, photographers, research department managers, researchers, university instructors, chess players. They have a particular skill at grasping difficult, complex concepts and building strategies. ENTP - Entrepreneurs, lawyers, psychologists, photographers, consultants, sales representatives, actors, engineers, scientists, inventors, marketers, computer programmers, comedians, computer analysts, credit investigators, journalists, psychiatrists, public relations, designers, writers, artists, musicians, politicians. Very freedom-oriented, they need a career which allows them to act independent and express their creativity and insight. INTP - Physicists, chemists, biologists, photographers, strategic planners, mathematicians, university professors, computer programmers, computer animators, technical writers, engineers, lawyers, forensic researchers, writers, artists, psychologists, social scientists, systems analysts, researchers, surveyors. Highly analytical, they can discover connections between two seemingly unrelated things, and work best when allowed to use their imagination and critical thinking. 34 States of Matter Unit Chapter 3 Pgs. 66-97 Notes from reading chapter: 35 36 Directions: Use Chapter 3, section 1 and teacher notes to complete this page. Kinetic Theory of Matter: Behavior of Matter: States of Matter: 1. 2. 3. 4. ?5. Solid: Amorphous Solid: Liquid: Gas: Plasma: Bose-Einstein Condensate (BEC): 37 38 Name __________________ Hour _______ Slime Lab report Background: The state of matter of a substance is determined by the movement of the molecules. You will be making a material and then answering questions about the state of matter and molecular movements. Procedure: You will need the following items per group: 1 dixie cup 1 tsp. Glue 1 tsp. Water from the tap 1 tsp starch Consider the ingredients for a moment: What state of matter is the water? __________________ What state of matter is the glue? _____________ What state of matter is the starch? _________________ Now add the glue and water together in a dixie cup and stir. What state of matter do you have now? _________________________ Next, add the laundry starch to your mixture and stir again. What state of matter do you have now? ____________________ Observations: Property Observation What state is it Ability to flow Shape changes Volume changes Conclusion questions: 1. What are the “requirements” to be considered a solid? 39 2. What are the “requirements” to be considered a liquid? 3. What are the “requirements” to be considered a gas? 4. What are the “requirements” to be considered a plasma? 5. Using the information you have about states of matter, what state of matter do you think this substance is? 6. What other materials have you seen that have similar properties to this one? TEST YOUR HYPOTHESIS How could you test the ability of the molecules to change position (flow)? How could you test if the volume is able to change? How could you test if the shape can be changed? Now, what state of matter do you think this substance is? _______________________ How certain are you? (check the response below) _____ Positive ______ Very sure ______ Pretty sure ______ Just a guess 40 Name __________________ Hour _____ Oobleck Lab Background: It is not always easy to tell if something is a solid, liquid, or gas. Substances can change states of matter quite easily. For example, solid ice can melt and become liquid water. Liquid water can evaporate and become a gas. Procedure: You will need the following items for this lab: A tin pie plate ½ cup corn starch ¼ cup of water Analyze the corn starch and water. What state of matter is the corn starch?____________ What state of matter is the water? __________________ Hypothesize what state of matter you will have when you mix the water and corn starch: Mix the corn starch and water together. If you have done this in the right amount, you will now have a substance that seems to “shift” states of matter as you interact with it. Observations: Take the first observations when the substance is lying undisturbed. Holds it’s shape? Will it “flow”? Has a definite volume? Take the next observations when the substance is lying on your palm. Holds it’s shape? Will it “flow”? Has a definite volume? 41 Take the final observations when the substance is under pressure (push on it with your finger, pencil, etc). Holds it’s shape? Will it “flow”? Has a definite volume? Conclusions: 1. Based on your observations, what state of matter is the Oobleck when it is lying undisturbed on the pie plate? 2. Based on your observations, what state of matter is the Oobleck when it is lying on your palm? 3. Based on your observations, what state of matter is the Oobleck when it is under pressure? 4. Explain what is happening in terms of particle movement in each of the trials as it relates to states of matter. Pie Plate: Hand: Pressure: 5. What you are working with is referred to as a polymer. Polymers can be categorized as “rubbery” or “glassy” when they are in the solid state. Rubbery is a flexible state and glassy is a state that can be broken (cracked). Plastic is another polymer. In terms of temperature, would plastic be Rubbery or Glassy at warmer temperatures? 42 Scientific Method Review – Cheerio Cylinder Supplies: 2 transparency sheets Cheerios Ruler/Meter stick Paper plate Calculator Background: Well-designed experiments will follow a predictable and logical method, called the “scientific method.” While there are many forms of the scientific method, they all have the same basic steps which are: 1.____________________________________________ 2. ___________________________________________ 3. ___________________________________________ 4. ___________________________________________ 5. ___________________________________________ Using your textbook pages 7-9, please give a definition of the following terms: Hypothesis: _______________________________________________________ Manipulated variable: _____________________________________________ Thinking back over information covered in class, the manipulated variable could also be called which of these: (circle one) OR independent variable dependant variable Responding variable: _______________________________________________ Thinking back over information covered in class, the responding variable could also be called which of these: (circle one) OR independent variable dependant variable Procedure: Obtain 2 overhead sheets (clear plastic) Roll each into a cylinder: one will be short/wide (cylinder A) and the other tall/thin (cylinder B) Put this cylinder on a paper plate (just helps hold the cheerios) You will be designing an experiment to determine which cylinder will hold more Cheerios or to determine they will hold the same amount. Questions: 1. What is the problem or question your experiment is going to solve? 2. List your hypothesis to the problem you stated in question #1: 43 3. How do you plan on comparing the amount of Cheerios in Cylinder A and B? 4. List (in whatever units you choose) the amount of Cheerios in each cylinder: Cylinder A ______________ Cylinder B ______________ 5. State your conclusion to your experiment question: 6. You are now going to solve this mathematically – what is the formula for finding the volume of a cylinder? (hint: you might want to look in your planner!!) 7. Solve the volume of cylinder A (short/wide) Use centimeters! 8. Solve the volume for cylinder B (tall/thin) Use centimeters! 9. Looking at the math equation, try to explain why the tall/thin cylinder holds less than the short/wide cylinder. 10. Using a gallon of milk (short/wide) and a 2 liter container of pop (tall/skinny), determine which would hold more volume (do this with math!) 44 Name ________________________ Period _____ Scientific Method – Spongebob Experiments The Bikini Bottom Gang loves science class and wanted to do a little research. Read the description for each experiment and use your knowledge of the scientific method to answer the questions. Flower Power SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if will help plants produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. He places one plant in a sunny window and waters it every day with fertilized water. He places the other plant on a shelf in a closet and waters it with plain water every other day. (1) What did SpongeBob do wrong in this experiment? Explain. (2) What should SpongeBob do to test the effectiveness of Flower Power fertilizer? Write an experiment. Super Snails Gary is not the smartest snail in Bikini Bottom and believes he can improve his brain power by eating Super Snail Snacks. In order to test this hypothesis, he recruits SpongeBob and several snail friends to help him with the experiment. The snails ate one snack with each meal every day for three weeks. SpongeBob created a test and gave it to the snails before they started eating the snacks as well as after three weeks. Analyze the data in the chart and determine whether or not the Super Snail Snacks create Snail Before smarter snails! Gary 64% Larry 78% (3) Based on the data provided, do the Super Snail Snacks work? Barry 82% Explain your answer. Terry 72% 45 After 80% 78% 84% 70% Bubble Time Patrick loves bubble gum and would like to be able to blow bigger bubbles than anyone else in Bikini Bottom. To prepare for the Bikini Bottom Big Bubble Contest, he bought five different brands of bubble gum and needs your help to find the brand that creates the biggest bubbles. Write an experiment to test the bubble power of the bubble gum brands and help Patrick win the contest. 46 Name ____________________ Period _____ Egg Drop Experiment Lab Procedure: Your job is to design a protective casing for a raw egg that will allow the egg to be dropped and not break (not even a crack!) You will have access to the following supplies only: 1 sheet of newspaper 2 sheets white paper 1 meter string .5 meter masking tape 2 paper towels 1 rubber band 1 sandwich sized Ziploc baggie You do not need to use all your supplies, but you cannot give them to other groups. If you use any supplies other than those listed above, you will receive a 0 on the lab. You will have one class period to design and build your egg-protection casing. The following day, we will be testing your design by dropping your egg. Your design must allow your egg to fall from a height of 2.25 meters. Successful drops will earn your team an extra 5 points! Questions: 1. Convert 2.25 meters into feet: 2. Write a description of your egg-protection design (or use a detailed, labeled sketch) 3. List the supplies you used: 4. Was your egg drop successful? _____ YES (+5) ______ NO 47 48 Use your textbook pages 88-91 Condensation Evaporation Sublimation Solidification Melting 49 50 Name ________________________ Hour _________ Heat of Fusion/Vaporization Lab Procedure: You will need the following supplies: A glass beaker Burner and ring stand Watch or clock 14-15 ice cubes A Celsius thermometer Water Put enough water in the beaker to just cover the bottom of the beaker. Take the temperature of the water in Celsius; put this down as the start temperature. After you have the starting temperature you will start to heat the ice and take the temperature every 30 seconds. Fill out the below chart until you get at least 2 readings while the water is boiling. BE CAREFUL – boiling water will burn your skin! Time (min) Start Temperature Observations 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 51 Using graph paper, graph your results. You MUST have the following labels on your graph: Solid Liquid Gas Heat of Fusion Heat of Vaporization Conclusion questions: 1. At what two points did the temperature not seem to change as much? 2. Explain why the temperature does not rise during the melting of the ice. Explain what the molecules are doing during this time!! 3. Explain why the temperature does not rise during the initial boiling of the water? Discuss what the molecules are doing at that time!! 4. What do we call the phase change between solid and liquid? 5. What do we call the phase change between liquid and gas? 6. What do we call the phase change between solid and gas? 7. What units do we measure heat in? (hint: check pgs 86-88 in your book) 8. How many of those units does it take to change 1 g of ice into water? 9. How many of those units does it take to change 1 g of water into steam? 52 You think you’re under PRESSURE???? Pressure: Boyle’s Law Says: Deals with: Thought Examples: Formula: Math Examples: 66 Liters of a gas is at a pressure of 8 atm. What happens to the volume of the gas at 2 atm? 4 L of a gas are under a pressure of 6 atm. What happens to the volume of the gas at 2.00 atm? 53 You think you’re under PRESSURE (again)? Charles Law Says: Deals with: Thought Examples: Formula: Math Examples: 600 mL of air is at 20.0oC. If the temperature is raised to 60oC, what happens to the volume? What change in volume results if 60.0mL of gas is cooled from 100 oC to 50oC? 54 Amonton’s Law Says: Deals with: Thought Examples: Formula: Math Examples: 10.0L of a gas is found to exert 97.0 kPa at 25o C. What would be the required temperature (in Celsius) to change the pressure to 100kPa? 55 Combined Gas Law Says: Deals with: Formula: Math Examples: As a practice example, 8.0 L of a gas has a pressure of 1 atm and a temperature of 600 Kelvin. Calculate the temperature when the volume is 2 liter and the pressure is 2 atm. 56 Name ________________________ Period _____ Boyle’s Bottle Lab Background: You will be taking pressure measurements with this lab. This is a rare lab where you will be using English Units instead of SI ones. SI pressure measurements include atmospheres and mm of Hg. English units of pressure include inches of Hg and pounds per square inch. The mathematic conversions between those units are: 1 atm = 760 mm Hg = 29.92 in Hg = 14.7 psi Supplies: Boyle’s Bottle Syringe with cap Bike Pump Tire gauge Petroleum Jelly Procedure: Please follow all directions carefully. Failure to follow these directions can damage the equipment! 1. Remove the tip cap from the syringe and pull on the plunger until it reaches 9 mL. Replace the tip cap and put the syringe into the bottle. 2. Rub a small amount of Petroleum jelly around the top rim of the bottle and put the lid on securely. 3. Connect the bike pump and pump air into the bottle. Do not exceed 50 psi! 4. Remove the pump quickly and look at the syringe. Record the volume of air in the syringe on the data table. 5. Using the tire gauge, take the air pressure of the bottle and record this on the data table. 6. Press the valve to release some of the air (1-2 seconds). Repeat your measurements. 7. Try to get at least 6 pressure/volume measurements. 8. Repeat the entire lab and record under “trial 2” Data: Trial One Bottle Pressure (psi) Syringe Volume (mL) Trial Two Bottle Pressure (psi) Syringe Volume (mL) 1 2 3 4 5 6 Questions: 1. Based on your data, what appears to happen to the volume of the syringe as the pressure goes up? 57 2. Based on your data, what appears to happen to the volume of the syringe as the pressure goes down? 3. Other than this experiment, give an example of Boyle’s Law using “real life” examples. Using all 12 pieces of information obtained from the lab, graph the results Graph: (Use a “dot to dot” line) Volume (mL) Pressure (psi) 58 Boyles Law A gas at a volume of 8 Liters is at a pressure of 2 atm. The volume is changed to 4 Liters, what must the new pressure be? Did the volume go up or down? UP Do you expect the pressure to have gone up or down? UP DOWN DOWN Solve: What was the new pressure? _________________ A gas has a volume of 30 Liters at a pressure of 3 atm. The pressure is tripled; what is the new volume? Did the pressure go up or down? UP DOWN Do you expect the volume to have gone up or down? UP DOWN Solve: What was the new volume? _________________ A gas is at a pressure of 16 atm and a volume of 6 Liters. The volume is changed to 2 Liters; what is the new pressure? Did the volume go up or down? UP Do you expect the pressure to have gone up or down? UP DOWN DOWN Solve: What was the new pressure? _________________ 59 Charles Law A gas at a volume of 2 Liters is at a temperature of 10oC. The volume is changed to 4 Liters, what must the new temperature be? Did the volume go up or down? UP DOWN Do you expect the temperature to have gone up or down? UP DOWN Solve: What was the new temperature? _________________ A gas has a volume of 30 Liters at a temperature of 40oC. The temperature is doubled; what is the new volume? Did the temperature go up or down? UP DOWN Do you expect the volume to have gone up or down? UP DOWN Solve: What was the new volume? _________________ A gas is at a volume of 24 Liters and a temperature of 60oC. The volume is changed to 4 Liters; what is the new temperature? Did the volume go up or down? UP DOWN Do you expect the temperature to have gone up or down? UP DOWN Solve: What was the new temperature? _________________ 60 61 62 Name _______________________ Gas Law Problems Abbreviations and Conversions K = temperature measurement °C - degrees Celsius atm = pressure measurement Formulas: P1V1 = P2V2 V1/T1 = V2/T2 P1V1/T1 = P2V2/T2 mm Hg = pressure measurement mL = volume measurement L = volume measurement V1T2 = V2T1 P1T2 = P2T1 P1/T1 = P2/T2 Solve each problem and then circle which gas law best applies to the situation. SHOW YOUR WORK!!! 1. What is the final volume of a 400.0 mL gas sample that is subjected to a temperature change from 22.0 °C to 30.0 °C and a pressure change from 760.0 mm Hg to 360.0 mm Hg? BOYLE CHARLES AMONTONS COMBINED GAS LAW 2. 2. The original volume of a gas was 400.0 L at a pressure of 0.250 atm. What is the volume at 2.00 atm? BOYLE CHARLES AMONTONS COMBINED GAS LAW 63 3. The volume of a gas originally at 273 K was recorded as 480 mL. What volume would the same gas occupy when subjected to a temperature of 91 K? BOYLE CHARLES AMONTONS COMBINED GAS LAW 4. A gas sample is at 26 °C and 1825 mm Hg. Determine the temperature of the gas if the pressure goes to 1140 mm Hg. BOYLE CHARLES AMONTONS COMBINED GAS LAW 5. 2.00 liters of hydrogen at a pressure of 750.0 mm Hg, is expanded to a volume of 20.0 liters. What is the new pressure? BOYLE CHARLES AMONTONS COMBINED GAS LAW BONUS 6. If the temperature of a given quantity of gas is doubled and the pressure tripled, what happens to the volume of the gas (does it go up/down and by how much? you need to show how you know the answer) 64 Name ________________________ Period _____ Date____________ Boyle’s vs. Charles Lab Background: You have now had an opportunity to learn about two different gas laws – Charles Law and Boyle’s Law. This lab will allow you to work with both laws to understand them even better! Supplies: 400 mL beaker syringe with tip cap ice and water textbooks 2 wood blocks thermometer Procedure 1: Please follow these steps carefully – failure to do so may result in burns! 1. Remove the tip cap and pull back the syringe plunger until you have drawn in 20mL of air. Replace the tip cap. 2. Carefully put the syringe tip first into the hot water that has been prepared for you by your instructor. (you will have to hold it by the plunger)-THE TIP OF THE SYRINGE SHOULD BE SUSPENDED IN THE WATER, NOT PUSHED AGAINST THE BOTTOM OF THE BEAKER!! 3. Allow about two minutes to pass and record the volume of the syringe and the temperature of the water in Data Table 1 below. **Note: Prior to taking each volume reading, quickly push on the plunger and allow it to spring back. This helps to correct for some of the friction force between the plunger and tube** 4. Add some cool water and bring the water down to around 40 o C (you might need to dump out some of the warm water to do this) 5. Again, submerge the syringe and take the volume and temperature readings after 2 minutes. 6. Add enough cold water and/or ice bring the temperature down to around 25 oC. 7. Again, submerge the syringe and take the volume and temperature readings after 2 minutes. 8. Put your syringe into the ice bucket, (which is probably around 0oC.) 9. Take the volume and temperature readings after 2 minutes. Data Table 1: Water Temperature (oC) Syringe Volume (mL) 65 Questions: 1. As the temperature went down, what happened to the volume? 2. Is this a demonstration of Charles or Boyle’s Law? 3. Describe why the volume changed as the temperature changed. (Hint: How does temperature relate to molecular movement?) Graph: Using your four temperature/volume measurements, graph the results of this experiment. Use a “best fit line” graph Volume (mL) Temperature (oC) 66 Procedure 2: For this procedure you will need the two wooden blocks, large syringe and syringe tip cap, and 5 textbooks. 1. Remove the plunger and insert the top of the plunger into the wood block (don’t push so hard that you break the plastic plunger) 2. Put the plunger in at 25mL and put the tip cap on. 3. Place the tip cap into the other wood block. 4. Record the air volume in Data Table 2. 5. Add one book to the top wood block (you may need to hold the book to help balance it). Record the volume. 6. Continue to add books and record the volume. 7. Repeat for “Trial two) Data Table 2: Number of books 0 1 2 3 4 5 Volume (trial one) Volume (trial two) Graph: Using your 12 points (6 from trial one, 6 from trial two), graph your results Use a “dot to dot” graph. Volume (mL) 67 Number of Books States of Matter Unit Chapter 13 Pgs 389-409 Notes from this unit: 68 Fluid Behavior Notes A fluid is: Bernoulli’s Principle Says: Drawing for Bernoulli: How to speed up a fluid: Real-world applications: Memory hook: Archimedes Principle Says: Bouyancy: Real-world applications: Memory hook: Pascal’s Principle Says: Drawing for Pascal: Real-world applications: Memory hook: 69 70 Name ___________________ Period __________ Archimedes Principle Lab What does Archimedes Principle say? __________________________ _________________________________________________________ Part 1: Buoyancy of a Floating Object A. Use the balance to measure the mass (grams) of a dowel. ______ g B. Put 80 mL of water into a 100mL graduated cylinder _______ mL C. Lower the dowel into the cylinder until it is floating. Record the new level of the water. _______ mL D. How many mL did the water level rise? (C-B) _______ mL E. How does the measured rise in water level compare to the mass of the dowel? (is it less, more, or the same as the weight? __________________________________ F. How does this relate to Archimedes Principle? (Remember that 1 mL of water weighs 1 grams) _______________________________________________________ _________________________________________________________ G. Push the dowel down with the point of a pencil until it is just under the water. Record the new volume of the water. ______ mL H. Subtract the original water volume (without the dowel) from this final volume to find the volume of the dowel. (G – B) _______ mL I. Calculate the density of the dowel by dividing the mass by the volume. Show your work here: (A / H) Density: ______ g/mL J. Is the density of the dowel more or less than the density of water? 71 Part 2: Buoyancy of a sinking object Define buoyant force: ____________________________________________ ______________________________________________________________ K. Use string to hang ____ weights on the balance. Record the mass of the object in grams. _______ g L. Carefully place a beaker of water on the balance support and submerge the object completely in the water. M. Record the mass of the submerged object. ________ g N. Fill a graduated cylinder about ¾ full of water. Record the volume of the water. _______ mL O. Carefully place the object in the water so that it is completely submerged. Record the new volume. _______ mL P. How much water was displaced by the object? (O-N) _______ mL Q. What is the mass of the water displaced? (remember- 1 mL of water weighs 1 gram) ________ g R. How much less does the object weigh when it is submerged? (K-M) ________ g S. Compare the answers to K and Q and determine which one was greater. Use this information to explain why these objects were not able to float. 72 Name ___________________ Period _____ Sugar Water Density Lab Background: This lab will allow you to brainstorm and problem solve with your group in order to make a 4 layered solution using only water, sugar, and food coloring. Procedure: 1. Put some water into a plastic cup. Add one drop of food coloring. Add an amount of sugar that you feel would be sufficient (Keep in mind that this will be your BOTTOM layer) 2. Put water into your second cup. Again add your choice of food coloring and your choice in the amount of sugar. CAREFULLY pour this solution on top of the solution you made in step one. (TIP: pour the solution down a spoon slowly instead of just dumping it in) 3. Continue to make layers until you have a four layer solution. If your layers aren’t successful, dump them out and try again! Rules/Tips: 1. Every layer must include water, sugar, and food coloring – no “sugar only” layers 2. Your teacher must be able to see 4 different layers 3. Avoid having two “dark” layers next to each other – it makes it hard to tell the difference between them! 4. Do not bring your solution to your teacher, get your teacher to come to you! 5. You will need your whole solution to fit in one cup – adjust your water amounts accordingly When you have a successful 4-layered solution, show your teacher and have them initial here: _________ List your final result information: Amount of sugar in top layer: _____________ Amount in 2nd layer: _____________ Amount of sugar in 3rd layer: _____________ Amount of sugar in bottom layer: _____________ Unsuccessful groups only: Write a paragraph explaining how this should have worked. (make sure to relate it to density) 73 74 Name ___________________ Period ______ Density Lab Purpose: To determine the density of a variety of substances. Supplies: graduated cylinder Wooden blocks balance calculator glass rods ruler copper strips Procedure: 1. Examine the graduated cylinder. How much change in volume does each line or “dash” on the graduated cylinder scale represent? __________ mL 2. Using the graduated cylinder, find the volume of the 5 copper strips by using a technique called water displacement. In order to do this, put water into the graduated cylinder and record the amount of water. Carefully slide all the strips into the graduated cylinder and record the water level. The volume of the strips is the difference between those two volumes. Volume of water Volume of water + strips Volume of strips Trial 1 Trial 2 Trial 3 Average volume: 3. Dry the copper strips and find the mass of all the strips ________ g 4. Determine the density of copper. Show your work. Remember the formula for density!! Calculated copper density: _______ g/mL 75 5. The actual density of copper is 8.92 g/mL. How does that number compare with your calculated result? How far “off” were you? 6. What are some reasons that your value may differ from the actual density? 7. Find the volume of the glass rods by the water displacement technique. Volume of water Volume of water + glass Volume of glass Trial 1 Trial 2 Trial 3 Average volume: 8. Dry the glass rods and find their mass: ___________ g 9. Calculate the density of the glass. Show your work. _________ g/mL 10. Obtain a small wooden block. List the letter code on that block: ______ Measure the block with a ruler: Length = ______cm Width = ______ cm Height = ________cm 11. Calculate the volume of the wooden block. (V = l x w x h) 12. Find the mass of the wooden block. __________ g 13. Calculate the density of the wooden block. Show your work! ____ g/mL 76 Name _________________ Period ____ Total of 10 States of Matter Unit You may choose from any of the activities listed below, but you must do enough activities to add up to at least 10! Please circle the activities you are completing. You may choose to go over 10, but you will not be able to receive more than 35 points out of the 30 point assignment. Value number Activity Description 2 Complete the Venn Diagram comparing and contrasting Amonton’s, Charles’, Boyle’s, and the Combined Gas Law. 2 Create a word search using at least 14 vocabulary terms from the States of Matter unit (we suggest www.puzzlemaker.com) Supply an answer key. 2 Design a flowchart showing the 4 states of matter, the phase changes between them, and an example of each state of matter. 4 Write your own Gas Law worksheet that includes 5 mathematical gas law problems that include at least one from each of the four studied gas laws. You must also provide an answer key for this worksheet. 4 Define the principles of Bernoulli, Archimedes, and Pascal and provide a sketch showing a real world application of each. 4 Create a crossword puzzle using at least 24 terms from this unit. (we suggest www.puzzlemaker.com) Supply an answer key. 6 Design an experiment that demonstrates Bernoulli’s, Archimedes, or Pascal’s principle. Follow the scientific method and include step by step directions for this experiment. 6 Research and write a ½ page essay on the Bose-Einstein Condensate. Include a list of the sources used in your research. 10 Write a creative short story that includes at least 3 states of matter, 2 gas laws, and 1 of either Archimedes, Pascal’s or Bernoulli’s principles. 10 Produce a YouTube video explaining and demonstrating at least one of the fluid principles or Gas Laws. Include a copy of your “script” and email your teacher the URL for this video. _______ point value x 3 = ________/30 77 Matter Classification Unit Chapter 2 Pgs 37-65 Notes from this unit: 78 Chapter 2 Vocab pure substance Your definition Examples/Info element compound heterogeneous mixture homogeneous mixture solution suspension colloid physical properties viscosity 79 malleability physical changes chemical properties chemical changes Hints of a chemical change: 1. 2. 3. 4. (not in book) precipitate Law of Conservation of Mass see page 193 80 Name ________________________ Hour _____ Chemical Reaction or Physical Change S’mores Lab Background: You have studied the difference between a chemical reaction and a physical change. Now it is time to put your knowledge to the test (and eat food, too!) Procedure: You will use a burner to roast a marshmallow (they are perfectly safe to eat!) You will use your roasted marshmallow to make a s’more Answer all the questions below. Warnings: Do NOT start the skewer on fire. If you are found “playing with fire” your entire group is done with the lab and you will be returning to my room after school. Should your marshmallow accidentally catch fire – simply blow it out. Conclusion Questions: 1.-3. Name three hints that a chemical reaction has taken place: 1. 2. 3. 4. What “new substance” was formed on your marshmallow when you roasted it? (You can just describe it if you don’t know what it is called) 5. What happened to the chocolate when you put your roasted marshmallow on it? Using the list of things that happened during your s’more making, circle if it was a chemical or physical change: 6. Marshmallow got warmer CHEMICAL PHYSICAL 7. Marshmallow turned brown CHEMICAL PHYSICAL 8. Chocolate melted CHEMICAL PHYSICAL 9. Black “stuff” formed on the marshmallow CHEMICAL PHYSICAL 10. You broke the graham cracker in half CHEMICAL PHYSICAL 11. You bit the s’more with your teeth CHEMICAL PHYSICAL 12. The s’more was digested CHEMICAL PHYSICAL 81 82 Name _______________________ Hour _____ Lab - Element, Compound or Mixture? Background: You have learned the definition of several types of materials such as element, solution, compound, mixture. You will now put that knowledge to the test in identifying materials and categorizing them. Procedure: Obtain a plastic bag with the following items in it: chalk, salt, aluminum, granite, sugar water, copper, and solder. Each item is numbered. Your job is to identify each item (do NOT taste anything to identify it!) and classify it. Identity means what it actually is from the above list. Classification will be: homogeneous mixture, heterogeneous mixture, element, compound, colloid, or suspension. Item Identity 1 ____________ Classification ____________________ 2 ____________ ____________________ 3 ____________ ____________________ 4 ____________ ____________________ 5 ____________ ____________________ 6 ____________ ____________________ 7 ____________ ____________________ Conclusion questions: 1. If you know the name of a substance, what is an easy way to determine if it is an element? 83 2. How is a compound different from a mixture? 3. List three common ELEMENTS that you can find in your home (you can’t use any from the lab you just did!) 4. List two common compounds you can find in your home (you can’t use any from the lab) 5. Give a common example of a colloid. 6. Give a common example of a suspension. 7. Give a common example of a solution. 8. What is a homogeneous mixture? 9. What is a heterogeneous mixture? 84 Name __________________ Hour ____ Chapter 2 Overview Using Chapter 2 in your book or your notes, answer the following questions: Put an E if an item is an Element or a C if you think it is a compound: ______ 1. iodine ______ 2. salt ______ 3. sugar ______ 4. chlorine ______ 5. water ______ 6. oxygen ______ 7. carbon dioxide 8. Would the atoms of one element be all the same, or be different? ________________ 9. Would the molecules of one compound be all the same, or be different? ____________ 10. Two or more atoms chemically combined creates a: ___________________ 11. Is milk a mixture or a substance? _____________________ 12. Is a colloid a mixture or a substance? _________________ Definitions. Give definitions of the following: 13. element: _____________________________________________________________ 14. compound: ___________________________________________________________ 15. mixture: _____________________________________________________________ 16. colloid: ______________________________________________________________ 17. A suspension is a heterogeneous OR homogeneous type of solution? (circle the right one) 18. A colloid OR a solution will scatter light as it passes through it. (circle the right one) 85 19. A suspension OR a solution will have particle “settle” as it sits undisturbed. (circle the right one) 20. Solutions OR suspensions have particles filtered out with filter paper. (circle the right one) 21. – 23. List at least 3 PHYSICAL properties of this piece of paper. 24. Describe one physical change you could make to this piece of paper. 25. List at least one chemical property of this piece of paper. 26. If I burned this piece of paper and captured all the dust, gas, ash, smoke, etc. from that burning, would all that stuff have a mass more, less, or the same as this paper? 27. Give a definition of the Law of Conservation of Mass: _________________________ ________________________________________________________________________ 28. – 30. List three “clues” that a chemical reaction has taken place. 86 Name _____________________ Hour ______ Chemical Changes Lab Background: You have learned that physical changes do not really change the composition of something; they just change the appearance. Chemical changes, on the other hand, do cause a change in the material. You will experiment with different examples of chemical changes. You have learned some “hints” that show you whether or not a change was a chemical one. List these four “hints” here: 1. _______________________________________________ 2. _______________________________________________ 3. _______________________________________________ 4. _______________________________________________ Experiment #1: Requires safety goggles! Materials: Goggles Graduated cylinder Glass beaker Ammonium Chloride Thermometer 1. Fill the glass beaker with 40mL of water. Take the temperature of the water and record it here: _________________ 2. Add ½ tsp (about 2g) of ammonium chloride to the water and stir until it is dissolved. Take the temperature of the water and record it here: __________ 3. In what way did the temperature change? 4. Would this reaction be an example of a physical or chemical reaction? (circle one) PHYSICAL CHANGE CHEMICAL CHANGE 5. What was the “hint” that gave you the answer to #4 above? Clean up: This solution is safe to go down the sink with plenty of water. Please rinse out the beaker and rinse off the thermometer and stirring rod. Please wipe up any spills in the lab area. Experiment #2: Requires safety goggles! Materials: Goggles Graduated cylinder Vinegar Baking soda 1. Fill the glass beaker with 20mL of vinegar. Add ½ tsp of baking soda. What do you observe? 87 2. Would this be a physical or chemical change? 3. What was the “hint” that gave you the answer to #2 above? Clean up: pour the solution down the sink drain. Rinse the beaker with water. Please wipe up any spills in the lab area. Experiment #3 Materials: Candle 1. Light a candle and observe it for a few minutes. List at least two changes or observations and decide if they were the result of physical or chemical change. Observation 1: ___________________________________ PHYSICAL or CHEMICAL Observation 2: ___________________________________ PHYSICAL or CHEMICAL Experiment #4: Requires safety goggles. Do this experiment ONLY in the designated area of the room! Materials: Wood piece Glycerin Potassium permanganate Water 1. Put 1/8 tsp of potassium permanganate on the wood piece. Describe what the potassium permanganate looks like: 2. Using the back of the measuring spoon, put a small dent in the pile of potassium permanganate. Add 2-3 drops of glycerin into the dent. Add 1-2 drops of water onto the glycerin. What do you observe happening? 3. Describe the appearance of the remaining material on the piece of wood: 4. What this a physical or chemical change? (circle one) PHYSICAL CHANGE CHEMICAL CHANGE 5. What “hints” (at least two) lead you to your answer for #4 above? 1. 2. Clean up: Scrape the remaining material into the provided disposal container. Wipe up any spills in the lab area. 88 Activity 5: Chemical Changes Consider that you are going to be teaching a group of elementary students (somewhere in grades K-2nd) about chemical changes. Your time frame for this lesson would be 20 minutes. You are not limited by materials or cost. Fill out the following about your lesson: Lesson type: Chemical Changes Materials needed: (list materials you would need for your lesson) Introduction: (how would you introduce the activity) Activity procedures: (Describe the activity and information you would need to teach the students) Objectives: List three things that your student would be able to understand about chemical changes once your lesson was over: 1. 2. 3. 89 Activity 6: Physical Changes Consider that you are going to be teaching a group of elementary students (somewhere in grades K-2nd) about chemical changes. Your time frame for this lesson would be 20 minutes. You are not limited by materials or cost. Fill out the following about your lesson: Lesson type: Physical Changes Materials needed: (list materials you would need for your lesson) Introduction: (how would you introduce the activity) Activity procedures: (Describe the activity and information you would need to teach the students) Objectives: List three things that your student would be able to understand about physical changes once your lesson was over: 1. 2. 3. 90 Name___________________ Period _____ Conservation and Changes Supplies needed: Snack size Ziploc baggie Film canister Diluted cabbage juice Graduated cylinder Balance Goggles Calcium Chloride Sodium Bicarbonate Procedure: Follow the steps carefully and IN ORDER. Wear your goggles during the entire lab. 1. Place ½ tsp of calcium chloride and ½ tsp of sodium bicarbonate (baking soda) into the Ziploc baggie. Question 1: Calcium chloride and sodium bicarbonate are both examples of: Elements Compounds Mixtures Question 2: Describe the physical appearance of each of these: Calcium chloride: _______________________________________ Sodium Bicarbonate: ____________________________________ Question 3: When you combine calcium chloride and sodium bicarbonate, you create: A new compound A heterogeneous mixture A homogeneous mixture 2. Measure 12mL of diluted cabbage juice and put it into the film canister Question 4: Describe the color of the cabbage juice: ______________________ 3. CAREFULLY put the film canister into the baggie without spilling it. 4. Carefully squeeze to remove as much air as possible from the baggie and Ziploc it shut. (check to make sure it is sealed. If you don’t seal it, you’ll ruin your lab!) 5. Without tipping over the film canister, find the mass of your baggie and its contents. Question 5: How much does your baggie and contents weigh? ____________ g 6. Return to your desk with the baggie and with the baggie still sealed shut, tip over the film canister. 91 7. Calmly observe and record as many changes as you can. (do not open the bag) Question 6: List the changes you observe and determine if those changes are physical or chemical. (it may take 2-3 minutes to fully react) Change:_____________________ PHYSICAL CHEMICAL Change:_____________________ PHYSICAL CHEMICAL Change:_____________________ PHYSICAL CHEMICAL Change:_____________________ PHYSICAL CHEMICAL 8. Without opening the bag, re-measure the mass of the baggie and its contents. Question 7: What does the baggie and contents weigh after the reaction is over? Question 8: How does this relate to the Law of Conservation of Mass? 9. Observe the contents of the baggie. Question 9: In what way(s) have the contents of the baggie changed? Question 10: The law of Conservation of mass states that mass is neither created or destroyed in a chemical reaction. But, when an iron nail rusts, it weighs more with rust than it did before it rusted. Which option below explains why this is possible. A. The Law of Conservation of Mass doesn’t apply to rusting. B. The iron has chemically combined with oxygen in the air to form rust, so if you add the mass of that oxygen to the mass of the iron, you will get the mass of the rusted nail. C. Rusting is a physical change and the Law of Conservation of Mass only applies to chemical changes. **Clean up the lab by dumping the baggie contents down the drain, rinsing off the film container and throwing the baggie away** 92 Name __________________ Hour ____ Finding Nemo Guide These questions come from nearly EVERY unit we have covered so far this year! Feel free to use your notes! 1. The state of matter that Nemo and the other fish live in is: 2. Whose principle determined the amount of water that needs to be displaced for the boat in the movie to float? 3. List one Physical Trait that the “aquascum 2003” lists for the aquarium water. 4. List one Chemical Trait that the “aquascum 2003” lists for the aquarium water. 5. Is the temperature of the water given in SI or English units? What is the temperature according to the “aquascum?” 6. Is the gravel at the bottom of the tank in the dentist office a homogeneous or heterogeneous mixture? 7. What principle discussed in class explains why Nigel can fly? 93 8. When the angler fish lights up, would this be a physical or chemical change? 9. What type of mixture would the salt water of the ocean be considered to be? 10. Would the damage to Nemo’s fin be considered a physical or chemical property? 11. Whose gas law could be demonstrated by Darla squeezing the plastic sack Nemo was in? 12. – 14. Name at least one gas, one liquid, one solid seen in the movie. Gas: Liquid: Solid: 15. When the bombs are exploded by the torpedo: is this a chemical or physical change? 16. Name one suspension seen in the movie. 17. Name one homogeneous mixture (not already mentioned in this worksheet) in the movie. 18. Name one heterogeneous mixture (not already mentioned in this worksheet) in the movie. 94 Atomic Structure and History Chapter 4 Pgs 98-123 Notes from this unit: 95 96 Chapter Definition 4 Vocab Examples, Memory Hook, sketch, etc Atom Nucleus Proton Neutron Isotopes Quark (see page 305) Lepton (not in book) Electron Ion 97 Important Discovery-Atomic Models You are a lab assistant to a scientist who has just made an important discovery! It is your job to get the word out to the public. To do this, you will be creating a flier (poster) that can be hung all over town. This flier must include, but is not limited to, the following information: Who is the scientist recognized with the discovery? What is the theory that is being proposed? If this is a new and/or improved model of the atom, how is it different than the previous accepted model? How did the scientist gather evidence for his theory? What does the model of the atom look like that your scientist is proposing? (Include a visual) Create your flier using paper and colored pencils. If you would like, you could “jazz up” your model by making it on a computer – some time and instruction will be provided for you. When finished, you will share the fliers with classmates. How will you be graded? Attach this sheet to your flier when you hand it in! 5 points 3 -4 points 1-2 points Description of the model Description accurately describes the model. Description is confusing, but adequately describes model. Description inaccurately describes the model. How is it different than previous models? Comparison to previous model is accurate. Comparison to previous model is somewhat accurate. Comparison to previous model is inaccurate. How did the scientist make this discovery? Method/s to discovery described accurately. Method/s to discovery described somewhat accurately. Method/s to discovery inaccurately described. What does the atom look like? Visual is an accurate portrayal of the model. Visual is a somewhat accurate portrayal of the model. Visual is an inaccurate portrayal of the atom model. Points Earned Total 98 Atom Models History of the Atom Dalton’s ideas Drawing: Also called: 4 main points: * * * * Thomson’s Model Also called: Drawing: Looked like: Main points: Rutherford’s Model Drawing: Also called: Looked like: Main points: 99 Bohr Model Drawing: Based on: Main points: Electron Cloud Model Time frame: Drawing: Based on: More accurate: Standard Model Time frame: Drawing: Based on: More accurate: 100 The Standard Model Going beyond Protons, Neutrons and Electrons Although the Proton, Neutron and Electron have been considered the fundamental particles of an atom, recent discoveries from experiments in atomic accelerators have shown that there are actually 12 fundamental particles. They are divided into two classes, consisting of Leptons and Quarks. The proton and neutron are no longer considered fundamental particles in this sub-atomic classification. Questions you may have about sub-atomic particles are: What are the Leptons? What are the Quarks? How does this all fit with atomic physics? Leptons The Lepton classification of sub-atomic particles consists of 6 fundamental particles and their 6 anti-particles (opposites): Electron and Anti-electron Muon and Anti-muon Tau and Anti-Tau Electron Neutrino and Electron anti-neutrino Muon Neutrino and Muon anti-neutrino Tau Neutrino and Tau anti-neutrino Electron, Muon and Tau Leptons The Electron remains a fundamental particle, as it was in the Atomic Theory. It has an electrical charge of (-1) and plays an active role in chemical reactions. The Muon is primarily a result of a high-energy collusion in an atomic accelerator. The Muon is similar to an Electron, only heavier. The Tau particle is similar to a Muon, only heavier yet. Muon and Tau particles are unstable and exist in nature for a very short time. Neutrinos Neutrinos are small and have no electrical charge. This makes them extremely difficult to detect. They can possess a large amount of energy and the very rare times they do collide with another particle, that energy can be released. In central Russian in the early 1900s, "something" exploded, knocking down hundreds of trees in the forest, around a single point. Scientists speculate that this was caused by a speeding Neutrino striking an atom. The types of neutrinos are: 101 Electron Neutrino, which has no charge and is extremely difficult to detect Muon Neutrino, which is created when some atomic particles decay Tau Neutrino, which is heavier than the Muon Neutrino. Quarks Another group of sub-atomic particles are the Quarks. Just like their name, they exhibit unusual characteristics. The fundamental particles among the Quarks are: Up and Down Quarks Charm, Strange, Top and Bottom Quarks All these quarks also have an opposite anti-quark. Other particles are made up of combination of Quarks. Up and Down Quarks The Up Quark has an electrical charge of (+2/3). The Down Quark has an electrical charge of (-1/3). Proton The Proton is made up of two Up Quarks and one Down Quark. The electrical charge of the proton is then: (+2/3) + (+2/3) + (-1/3) = (+1). Neutron The Neutron is made up of one Up Quark and two Down Quarks. The resulting electrical charge of the Neutron is: (+2/3) + (-1/3) + (-1/3) = (0). Charm, Strange, Top and Bottom Quarks The Charm Quark has the same electrical charge as the Up Quark but is heavier. The Top Quark is then heavier than the Charm. The Strange Quark has the same electrical charge as the Down Quark but is heavier. The Bottom Quark is then heavier than the Strange. Quarks that are together are referred to as: Hadrons Baryons have three quarks and Mesons have one quark and one anti-quark In conclusion According to Sub-Atomic Theory, the fundamental particles now consist of 6 Lepton particles (and their opposites) and 6 Quark particles (and their opposites). Other particles are made up of combination of Quarks. An Electron is still a fundamental particle, but Protons and Neutrons are combinations of Quarks. 102 Name ______________ Hour ________ What Makes Up an Atom? Using your book and notes, answer the following questions 1. – 2. What two sub-atomic particles make up the nucleus of the atom? 3. What charge does a proton have? 4. Considering the fact that they have no charge, what is the purpose of neutrons? 5. What sub-atomic particles are negatively charged? 6. The number of ______________ determines what element it is. 7. If the atomic mass of Carbon is 13, how many neutrons would that atom have? 8. What is the name of the smaller particle that makes up protons? 9. What is the name of the smaller particles that makes up electrons? 103 10. – 11. Unless it is an ion, atoms will have the same number of ___________ and ____________. 12.- 13. Draw an example of an atom using Bohr’s model. 14. – 15. Draw an example of the “Plum Pudding” model. 16. Who “designed” the Plum Pudding Model? 17. Which atomic model is considered to be the most accurate today? 18. -20. Name at least three kinds of quarks. 104 Name: In the center of Matterville, there is a place called the Nucleus Arcade, where two members of the Atoms Family like to hang out. Perky Patty Proton, like her sisters, is quite large with a huge smile and eyes that sparkle (+). Patty is always happy and has a very positive personality. Nerdy Nelda Neutron is large like Patty, but she has a boring, flat mouth and eyes with zero expression (o). Her family is very apathetic and neutral about everything. Patty, Nelda, and their sisters spend all their time at the arcade. Around the Nucleus Arcade, you will find a series of roadways that are used by another member of the Atoms Family, Enraged Elliott Electron. Elliott races madly around the Arcade on his bright red chromeplated Harley-Davidson. He rides so fast that no one can be sure where he is at any time. Elliott is much smaller than Patty and Nelda and he is always angry because these bigger relatives will not let him in the Arcade. He has a frown on his face, eyes that are squinted with anger, and a very negative (-) attitude. The first energy street can only hold only two Electron brothers. The second energy street, called the Energy Freeway, can hold 8 brothers. The third energy street, called the Energy Superhighway, can hold 18 of the brothers. The morale of Matterville is stable as long as each negative Electron brother is balanced out by one positive Proton sister. The number of residents in Matterville depends on the Proton and Neutron families. Description: Favorite Activity: Name: Description: Favorite Activity: Name: Description: Favorite Activity: Challenge: What would happen to the morale of Matterville if one Elliott Electron was kidnapped? 105 Contains protons and neutrons Can hold up to 2 electrons Can hold up to 8 electrons Can hold up to 18 electrons 1st Verse: They’re tiny and they’re teeny, Much smaller than a beany, They never can be seeny, The Atoms Family. Chorus 2nd Verse: Together they make gases, And liquids like molasses, And all the solid masses, The Atoms Family Chorus Chorus: They are so small. (Snap, snap) They’re round like a ball. (Snap, snap) They make up the air. They’re everywhere. Can’t see them at all. (Snap, snap) 3rd Verse: Neutrons can be found, Where protons hang around; Electrons they surround The Atoms Family. Chorus 106 Periodic Table Unit Chapter 5 (sections 5.1 and 5.2) Pgs 124-138 Notes from this unit: 107 108 109 110 Name ________________________ Hour _________ Periodic Table Lab Background: We have started to use the periodic table, but haven’t learned much about the way it is set up. The periodic table is grouped so that elements in the same row share a characteristic and the elements in the same columns share a same characteristic. Mendeleev (the guy credited with setting up the first periodic table) had to do this very thing with elements as he devised the periodic table. Procedure: Obtain a plastic bag with the following 12 items in it: Paper clip Brass fastener Paint brush Pop can tab Spoon Wood screw Piece of Paper Fork Business card Paper towel Rubber band Dixie cup If you are missing an object, please let your teacher know so you can get a replacement. Using the grid supplied to you, align the 12 objects into rows (horizontal) and columns (vertical). Each row and column must have a common trait for all the items. Conclusion questions: 1. Fill in the following representation of your grid: Column 1 Column 2 Column 3 Column 4 Row 1 Row 2 Row 3 2. What is the common trait in Row 1? 3. What is the common trait in Row 2? 111 4. What is the common trait in Row 3? 5. What is the common trait in Column 1? 6. What is the common trait in Column 2? 7. What is the common trait in Column 3? 8. What is the common trait in Column 4? 9. What does the name “Periodic” mean? (hint: a dictionary) 10. Who was the first man to develop a periodic table? 11. What do we call the vertical columns of a periodic table? 12. What do we call the horizontal rows of a periodic table? 13. What is another name for the group 17 elements? (hint: use your periodic table in your planner) 14. What is another name for the group 18 elements? (hint: use your periodic table in your planner) 15. What is kind of unique about the group 18 elements? Name ________________________ 112 Period _______ Atomic Masses Lab Background: You have discovered where on the periodic table to find information about the number of protons and atomic weights. Now it is time to see how they are related and connected to one another. Procedure: Obtain a bag of M&M’s (don’t eat these; they are for the lab only). There should be two colors of M&M’s in your bag. Decide which color will represent protons and which will represent neutrons. Proton color: __________________________ Neutron color: _________________________ Using the Periodic Table in your planner, on the wall, or in your binder, make a model of the nucleus of a Carbon 12 atom. How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams Now develop a model of a Carbon 13 atom. How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams Now develop a model of a Carbon 14 atom. How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams What is the average mass of the three Carbon atoms? ___________ grams Using the Periodic Table in your planner, on the wall, or in your binder, make a model of the nucleus of a Phosphorous 30 atom. 113 How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams Now develop a model of a Phosphorous 29 atom. How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams Now develop a model of a Phosphorous 33 atom. How many protons does it have? ___________ How many neutrons does it have? __________ Using a balance, find the mass of your nuclear model: ____________ grams What is the average mass of the three Phosphorous atoms? _______ grams Conclusion questions: 1. How do you determine the number of protons in your atom? 2. How do you determine the number of neutrons in your atom? 3. If you change the number of neutrons, do you still have the same element? 4. If you change the number of protons in an atom, do you still have the same element? 5. In ancient times, people tried to turn lead into gold (it was called alchemy). While this is not possible, how many protons would need to be gained or lost to do this? ________ gained or lost (circle one) Periodic Table Introduction Notes Five important points from the Periodic Table video. 1. 114 2. 3. 4. 5. What does the periodic table tell me? Reading the element information: Types of elements listed on the periodic table: 1. 115 2. 3. As you move ________ to _________ on the periodic table, the elements get less metallic. Element symbols you need to know: Copper ___________ Sodium ___________ Silver ___________ Iron ___________ Lead ___________ Neon ___________ Chlorine ___________ Sulfur ___________ Titanium ___________ Helium ___________ Carbon ___________ Potassium ___________ Oxygen ___________ Iodine ___________ Zinc ___________ Calcium ___________ Aluminum ___________ Gold ___________ Mercury ___________ Hydrogen ___________ 116 1. Describe some of the properties of a metal: 2. Describe some of the properties of a non-metal: 3. What are “transitional metals/elements” like? 4. What are some properties of the halogens? 5. What are some properties of Noble Gases? 6. What are some properties of metalloids? 7. What is unique about the elements in group 18? 8. Using your periodic table, which elements are liquids at room temperature? (you may list the symbols) 9. Which elements are gases at room temperature? (you may list the symbols) 117 Name ________________________________ Class Period__________ Elements and the Periodic Table Jigsaw Activity Alkali Metals (Group 1A) 1. How many valence electrons do these elements have? As a result of this, are these elements reactive or stable? 2. Are all of the alkali metals equally reactive? If not, how do they compare to each other? 3. List the elements included in this group. Alkaline Earth Metals (Group 2A) 4. How many valence electrons do the elements of this group contain? 5. Compare the melting points of the alkaline earth metals to those of the alkali metals. 6. List one importance of Magnesium, and one importance of Calcium. Boron/Carbon Families (Groups 3A & 4A) 7. List the elements included in the Boron Family. 8. List three properties of aluminum. What is one thing aluminum is used for? 9. What can boron be used for? 10. How many valence electrons do the elements in the carbon family have? 118 11. What is carbon’s importance to you? Nitrogen/Oxygen Families (Groups 5A & 6A) 12. What is nitrogen often used for? 13. What is the most abundant element in Earth’s crust? 14. Summarize the paragraph about sulfur. Halogen/Noble Gasses (Groups 7A & 8A) 15. How many valence electrons do the halogens have? What chemical property results from having this many valence electrons? 16. List two halogens, and how they are used commercially. 17. List three properties of the noble gasses. 18. What happens when electric current is passed through noble gas? Practice Quiz 119 See how much you know. Without looking at your planner or at the chart on the wall, see how many of these elements you already know the symbols of! When we take this “for real” you will need a minimum of 14 right to get a passing grade. If you fail, you continue to re-take it until you pass (although you are stuck with the first grade you got!) 1. Gold ___________ 2. Silver ___________ 3. Iron ___________ 4. Lead ___________ 5. Copper ___________ 6. Chlorine ___________ 7. Sodium ___________ 8. Hydrogen ___________ 9. Helium ___________ 10. Carbon ___________ 11. Potassium ___________ 12. Mercury ___________ 13. Iodine ___________ 14. Oxygen ___________ 15. Calcium ___________ 16. Neon ___________ 17. Zinc ___________ 18. Titanium ___________ 19. Aluminum ___________ 20. Sulfur ___________ Ions, Isotopes, Charges 120 Symbol Atomic # Mass Number # # #electrons charge protons neutrons Na +1 Y 89 0 88 +2 Cs 54 Pt 195 +1 6 2 Ge 0 Te -2 101 Al 42 13 +3 33 Sn -3 50 Ca +2 87 +1 B 2 I -1 Ta 73 Name ____________________________ Period_______ 121 Chapter Review – Periodic Table Vocabulary Review – In the space on the left, write the term that correctly completes each statement. Use each term once. Word Bank metals isotopes average atomic mass electron cloud groups metalloids mass number atomic number electrons nucleus periodic table periods chemical symbol quarks transition metals _______________ 1. A capital letter or a combination of a capital letter and a small letter that is used to represent an element is called a(n): _____. _______________ 2. The horizontal rows of elements are called: _____. _______________ 3. An average of the masses of all the isotopes that occur in nature for an element is the _____. _______________ 4. Vertical columns of elements are called _____. _______________ 5. Elements in the middle of the periodic table, groups 4 through 12, are called the ______ and make colorful compounds. _______________6. The number of protons in an atom is the _____. _______________ 7. Protons and neutrons can be subdivided into _____ in a supercollider. _______________ 8. The center of an atom where protons and neutrons are located is the _____. _______________ 9. A total count of the neutrons and protons in an atom is the ______. _______________ 10. Atoms of the same element but with different numbers of neutrons are ____. _______________ 11. Elements that are found on the left side of the periodic table are _____. _______________ 12. Elements that have some properties of both metals and nonmetals are ____. _______________ 13. The particles that move about the nucleus and have a negative charge are ____. _______________ 14. The region around the nucleus occupied by electrons is a(n) ___. _______________ 15. A chart that shows the classification of elements is called the ____. Complete the table below by writing the correct information in the blank spaces. Element Chemical Symbol Atomic Number Number of Protons Number of Neutrons Mass Number 122 1. Sodium 2. Carbon 11 8.Chlorine-35 9. Copper C Fe S N O He Cl Cu 10. Chlorine-37 Cl 3. 4. Sulfur 5. Nitrogen 6. Oxygen 7. 11 6 26 26 16 7 8 2 17 29 12 6 30 16 7 8 2 17 29 35 17 20 8 2 23 12 56 32 14 4 35 37 Refer to the periodic table below and the boxes at the right of the table to answer questions 11-15. 1 18 2 13 14 15 16 17 11 Na 23.0 3 A 4 5 6 7 8 9 10 11 12 D Fe C 26 Fe Au 55.8 B 79 Au 197 ______ 11. Which element has a greater atomic mass, A or B? ______ 12. Which element is a metal, B or C? ______ 13. In which group is gold? ______ 14. What is the average atomic weight of iron? ______ 15. What is the atomic number of sodium? 123 Carbon Nitrogen Helium Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Potassium Chlorine Beryllium Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Hydrogen Aluminum Argon Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Sodium Silicon Fluorine Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ Atomic weight: _______ Atomic #: _____ # Protons: _____ # Neutrons: _____ # Electrons: _____ 124 Structure of the Atom Across 2. Number of protons in an atom 4. Scientist who developed a model based on the planetary model. 6. Symbol for sodium 8. Center of an atom 9. Name of element whose symbol is Ru 11. Only element with atoms which do not have neutrons 12. Negatively charged particle 13. Atomic number of fluorine (spelled out) 15. Mixture of mostly nitrogen and oxygen 16. Element often made into electrical wire 17. Positively charged particle in nucleus 19. Sum of protons and neutrons Down 1. Region surrounding the nucleus which is occupied by electrons 3. Atom of an element is a different number of neutrons 5. Helps us understand something we can not see directly 6. A particle with approximately the same mass as a proton 7. The building block of matter 8. A noble gas used in lighted signs 9. Element name of a group 18 radioactive gas that can accumulate in houses 10. Symbol for silver 11. Element used in balloons 14. In an uncharged atom, this is equal in number to protons 18. Fe is the symbol 125 Periodic Table Unit (continued from Chapter 5) Chapter 6 (section 6.1 and 6.2) Pgs 156-169 Notes from this unit: 126 127 Your definition Important Points Polar Molecule Examples Your definition Examples Non-examples Important Points Non-polar molecule Non-examples 128 Your definition Important Points Ionic Bond Example Your definition Non-examples Important Points Covalent Bond Examples Non-examples 129 Your definition Important Points cation Example Your definition Non-examples Important points anion Examples Non-examples 130 Your definition Examples Your definition Important Points Chemical Formula Non-examples Important Points Chemically Stable Examples Non-examples 131 Ionic/Covalent Notes Page Ionic Bonds Covalent Bonds Diatomic Molecules: 132 133 Name ______________________ Period______ Study Guide: Periodic Table 1. What group number on the periodic table is the halogen group? 2. What group number on the periodic table is the Noble Gas group? 3. Name one element that is a liquid at room temperature? 4. What element type is Germanium? 5. Of metals or non-metals, which are typically gasses at room temperature? 6.-10. Draw a Bohr Model of Carbon: 6. Drawing: 7. Mass number: _______ 8. Atomic number: ______ 9. Number of Protons: ________ 10. Number of Neutrons: _______ 11.-15. Draw a Bohr Model of Argon: 11. Drawing: 12. Mass number: _______ 13. Atomic number: ______ 14. Number of Protons: ________ 15. Number of Neutrons: _______ 134 Complete the missing sections of the grid: Symbol Atomic # Rh 45 15 Pt Mass # # Protons #neutrons 45 31 #electrons Charge 45 0 15 -1 195 117 80 80 45 35 0 27. Polar molecules will mix well with _______________________ molecules. 28. List one example of a polar molecule. 29. Non-polar molecules will mix well with _____________________ molecules. 30. List one example of a non-polar molecule. 31. Give a definition and example of an anion. 32. Give a definition and example of a cation. 33. Moving from RIGHT TO LEFT on the periodic table, do elements get more or less metallic? 34. Name a unique thing about Noble Gasses. 35. Name one property of most metals. 135 Compounds and Bonding Unit Chapter 6 (sections 6.3) Pgs 170-175 Notes from this unit: 136 137 Bonding Notes Page Valence electrons: Chemically stable: Elements that are chemically stable: Other elements need to _________ to become chemically stable. Ionic bond: Covalent bond: 138 Common Compounds Common name Chemical formula Salt ---------------------------------------------------- Water ------------------------------------------------- Carbon Dioxide------------------------------------- Carbon Monoxide ------------------------------------ Hydrochloric Acid ------------------------------------ Ammonia ----------------------------------------------- Bleach --------------------------------------------------- Sand------------------------------------------------------ Baking soda--------------------------------------------- Propane-------------------------------------------------- Vinegar--------------------------------------------------Name hints: Examples: One Two Three Four Five 139 Practice dot diagrams: 1. Lithium 2. Fluorine 3. Magnesium 4. Germanium 5. Krypton 6. Selenium 7. Strontium 8. Arsenic 140 141 Name _______________ Hour ____ Draw a dot diagram for the following elements. 1. Hydrogen 2. Neon 3. Calcium 4. Sulfur 5. Aluminum 6. Barium 7. Silicon 8. Oxygen 9. Xenon 10. Helium 11. Tin 12. Iodine 13. Radon 14. Potassium Please answer the questions on the back. 142 1. Why do you pair up the first two electrons? 2. What do dot diagrams show us about the electrons? (where are they?) 3. When do you start to pair up the electron dots (after the first pair is done) 4. If you have a dot diagram with 8 dots (4 pairs), what does that tell you about the element? 5. What is the “goal” of an element in bonding chemically (what does it need to do to be stable?) 6. Explain how an ionic bond holds molecules together. 7. Explain how a covalent bond holds molecules together. 8. What is the term for the electrons in the outer shell? 9. In dealing with bonding, is it the total number of electrons, or the number of electrons in the outer shell that matters? 10. Which type of bond is stronger: ionic or covalent? 143 Bond with a Classmate You will be given an index card with an ion on it. Write your ion in the appropriate column five (5) times. Find another ion with which you can bond, write the symbol and charge in the chart below. Then write the new compound formula and name. When you have completed five, switch cards with another and make five more compounds. Repeat until all rows are filled. Remember positive can only bond with negative and vice versa. + Ion - Ion Formula (cation) (anion) Mg2+ Cl1MgCl2 Name Magnesium dichloride 144 145 Name _____________________ Hour ____ Let’s Bond! 1. When a person writes a chemical formula, they often use numbers that are written a little below the line. What is the term for this type of “written below” number? 2. What does the number written below the line represent? 3. What does a valence number tell you? 4. What does an oxidation number tell you? When sodium and chlorine combine chemically, sodium will give an electron to chlorine. 5. What overall charge does this give sodium? 6. What overall charge does this give the chlorine? 7. What type of bond holds the sodium and chlorine together? 8. Using oxidation numbers, write the chemical formula for the combination of sodium and chlorine. 9. What is the common name of “sodium chloride?” 10. Write the formula for dihydrogen monoxide. 146 11. Using oxidation numbers, write the chemical formula for combining hydrogen and chlorine. 12. What is the name for the combination of hydrogen and chlorine? 13. Draw the dot diagram for: Neon 14. Draw the dot diagram for: Helium 15. Using oxidation numbers, write the chemical formula for combining hydrogen and oxygen. 16. What is the common name for the combination of hydrogen and oxygen? 17. What type of bond is stronger: ionic or covalent? 18. Write the chemical formula for bleach. 19. What is the prefix that is used to show there are four atoms of an element in a chemical formula? 20. What is the prefix that is sometimes used to show is one atom of an element in a chemical formula? Let the Writing Begin! Using oxidation numbers, write the compound formulas for the following: 147 1. calcium and oxygen 2. hydrogen and nitrogen 3. boron and chlorine 4. aluminum and nitrogen 5. sodium and fluoride 6. carbon and iodine 7. cesium and selenium 8. potassium and arsenic 9. barium and oxygen 10. carbon and sulfur Write the names for the following compounds: 1. MgCl2 2. BaBr2 3. HCl 4. K3N 5. Al2S3 6. Li2O 7. BeO 8. CF4 9. Sr3P2 10. H2S 148 Writing and Naming Compounds Using oxidation numbers, write the compound formulas for the following: 1. calcium and chlorine 2. potassium and iodine 3. magnesium and selenium 4. iron (II) and bromine 5. copper (I) and oxygen 6. potassium and nitrogen 7. carbon and fluorine 8. cesium and carbon 9. gold (II) and nitrogen 10. chromium (I) and sulfur Write the names for the following compounds: 1. SCl2 2. Mg3N2 3. FeF2 4. Ca2C 5. AuI 6. N2O3 7. CF4 8. FrCl 9. SiCl4 10. AlI3 149 Writing Equations with Polyatomic Ions Monoatomic ions: Example of monoatomic ion: Polyatomic ions: Example of polyatomic ion: Combine Potassium and Permanganate Combine Iron (II) and Nitrate: Combine Calcium and Carbonate: 150 151 Name __________________ Period _______ Making Compounds – With a Twist Using your polyatomic “cheat sheet,” write the NAMES of the following compounds. 1. NH4Cl 1. ______________________________________ 2. HClO2 2. ______________________________________ 3. LiC2H3O2 3. ______________________________________ 4. BeSO4 4. ______________________________________ 5. (NH4)3N 5. ______________________________________ 6. NH4NO3 6. ______________________________________ 7. Sr3(PO4)2 7. ______________________________________ 8. Zn(ClO3)2 8. ______________________________________ 9. CaCO3 9. ______________________________________ 10. K2Cr2O7 10. ______________________________________ Using your “cheat sheet” and Periodic Table, write the FORMULA of the following compounds. 11. sodium chromate 11. ______________________ 12. barium nitrate 12. ______________________ 13. ammonium sulfate 13. ______________________ 14. aluminum hydroxide 14. ______________________ 15. calcium phosphate 15. ______________________ 16. cesium cyanide 16. ______________________ 17. sodium nitrite 17. ______________________ 18. calcium acetate 18. ______________________ 19. beryllium chlorite 19. ______________________ 20. rubidium sulfite 20. ______________________ Name __________________ 152 Period ______ Writing Formulas – Second Chance Notice that the best you can do on this worksheet is a 17 out of 20, even if you don’t miss any!! Use your polyatomic ion “cheat sheet” to help you. WRITE FORMULAS FOR EACH OF: 1. lithium nitrate______________ 2. sodium chlorate_____________ 3. barium carbonate_____________ 4. sodium phosphate_____________ 5. potassium sulfate______________ 6. ammonium oxide_____________ 7. potassium chlorate_____________ 8. sodium chromate ______________ NAME EACH OF THE FOLLOWING: 9. CaSO4 ______________________________________ 10. Ba(OH)2 ______________________________________ 11. KNO3 ______________________________________ 12. Ba3(PO4)2 ______________________________________ 13. Mg(NO3)2 ______________________________________ 14. Ni2(SO4)3 ______________________________________ 15. Na2SO4 16. K2Cr2O7 ______________________________________ 17. LiC2H3O2 ______________________________________ ______________________________________ 153 154 CHARGE ION Aluminum (Al) Argon (Ar) Barium (Ba) Bromide (Br) Cadmium (Cd) Calcium (Ca) Cesium (Cs) Chloride (Cl) Fluoride (F) Hydride (H) Hydrogen (H) Iodide (I) Lithium (Li) Magnesium (Mg) Neon (Ne) Oxide (O) Potassium (K) Sodium (Na) Silver (Ag) Strontium (Sr) Sulfide (S) Zinc (Zn) 1 2 3 X 4 NONE -1 -2 X X X X X X X X X X X X X X X X X X X X X nitrate nitrite chlorite chlorate hypochlorite NO3 -1 NO2 -1 ClO2 -1 ClO3 -1 ClO -1 chromate dichromate phosphate phosphite acetate CrO4 -2 Cr2O7 -2 PO4 -3 PO3 -3 C2H3O2 -1 perchlorate ClO4 -1 cyanide CN -1 sulfate sulfite SO4 -2 SO3 -2 hydrogen sulfate hydrogen sulfite HSO4 -1 HSO3 -1 carbonate CO3 -2 hydrogen carbonate HCO3 -1 hydroxide OH -1 HPO4 -2 ammonium NH4 +1 hydrogen phosphate dihydrogen phosphate permanganate thiocyanate MnO4 -1 SCN -1 oxalate silicate C2O4 -2 SiO3 -2 H2PO4 -1 155 Your definition Important Points Alloys Real example Your definition Analogy/Memory hook Basic equation Synthesis Reaction Real example Analogy/Memory hook 156 Your definition Basic equation Single Replacement Real example Your definition Reaction Analogy/Memory hook Basic equation Double Replacement Real example Reaction Analogy/Memory hook 157 Your definition Real example Your definition Basic equation Decomposition Reaction Analogy/Memory hook Basic equation Combustion Reaction Real example Analogy/Memory hook 158 Your definition Real example Your definition Important Points Endothermic Reaction Analogy/Memory hook Important points Exothermic Reaction Real example Analogy/Memory hook 159 Name ___________________ Period ______ Endothermic vs. Exothermic Reaction Lab Background: You have learned that some reactions absorb heat while others release it. In this lab, you will be experimenting with these two types of reactions. Materials: 2 Test tubes thermometer watch or timer Calcium chloride Ammonium chloride Balance safety goggles Graduated cylinder Procedure: Experiment #1 1. Pour 10 mL of tap water into each of your two test tubes. 2. Take the temperature of both test tubes and record it. 3. Add 2 grams of calcium chloride to one test tube. (don’t do anything to the other test tube) 4. Take the temperature of the calcium chloride mixture every 20 seconds for 3 minutes. 5. Now, take the temperature of the other test tube to compare. Temp: start 20sec 40sec 1min 1:20 1:40 2:00 2:20 2:40 3:00 CaCl2 + H20 Just H20 Conclusion questions: 1. Did the temperature of the water and calcium chloride go up or down? By how many degrees? (From lowest point to highest point) 2. Did the temperature of the plain water go up or down or stay the same? By how many degrees? 3. Was the water and calcium chloride mixture releasing or absorbing heat? 4. What affect does that have on how it feels? (Will it make it feel hot or cold?) 5. What type of chemical reaction was this? Procedure: Experiment #2 160 Rinse both your test tubes out well! You will want to start “fresh” 1. Pour 10 mL of tap water into each of your two test tubes. 2. Take the temperature of both test tubes and record it. 3. Add 2 grams of ammonium chloride to one test tube. (don’t do anything to the other test tube) 4. Take the temperature of the ammonium chloride mixture every 20 seconds for 3 minutes. 5. Now, take the temperature of the other test tube to compare. Temp: start 20sec 40sec 1min 1:20 1:40 2:00 2:20 2:40 3:00 NH4Cl + H20 Just H20 Conclusion questions: 1. Did the temperature of the water and ammonium chloride go up or down? By how many degrees? (From lowest point to highest point) 2. Did the temperature of the plain water go up or down or stay the same? By how many degrees? 3. Was the water and ammonium chloride mixture releasing or absorbing heat? 4. What affect does that have on how it feels? (Will it make it feel hot or cold?) 5. What type of chemical reaction was this? 6. Name one common endothermic reaction that you know of: 7. Name one common exothermic reaction that you know of: EXAMPLE: _____H2 + O2 ---> H2O Reaction Types. Use the following symbols: S = Synthesis C = combustion DR = double replacement 161 SR = single replacement D = decomposition 1. _____C2H5SH + O2 ---> CO2 + H2O + SO2 2. _____HgO ---> Hg + O2 3. _____Br2 + KI ---> KBr + I2 4. _____Ca + H2O ---> Ca(OH)2 + H2 5. _____Zn + HCl ---> ZnCl2 + H2 6. _____MgCl2 ---> Mg + Cl2 7. _____FeS + HCl ---> FeCl2 + H2S 8. _____NaCl + H2SO4 ---> Na2SO4 + HCl 9. _____C6H12O6 + O2 ---> CO2 + H2O 10. _____AgNO3 + NaCl ---> AgCl + NaNO3 11. _____C21H24N2O4 + O2 ---> CO2 + H2O + NO2 12. _____CaCO3 + HCl ---> CaCl2 + CO2 + H2O 13. _____Ba(ClO3)2 ---> BaCl2 + O2 14. _____ C2H5OH + O2 ---> CO2 + H2O 15. _____Fe + O2 ---> Fe2O3 16. _____FeS ---> Fe + S 17. _____KClO3 ---> KCl + O2 18. _____Cl2 + NaBr ---> NaCl + Br2 19. _____Mg + O2 ---> MgO 20. _____ Fe + Cu(NO3)2 ---> Fe(NO3)2 + Cu 21. _____K + Cl2 ---> KCl 22. _____H2O ---> H2 + O2 23. _____C2H6 + O2 ---> CO2 + H2O 24. _____ KOH + H2SO4 ---> K2SO4 + H2O 25. _____ZnS + O2 ---> ZnO + S Name _______________ Hour ____ Precipitate – Doesn’t that mean rain?? 162 Background: You have learned about the different types of chemical reactions. One of those, single replacement, can often create a solid. This solid will not dissolve back into the solution (insoluble) and is called a precipitate. Procedure: You will need: 2 clear plastic cups 1/8 cup Elmer’s Glue All 1/8 cup tap water ½ cup aqueous Borax solution Stirring rod later. Pour ½ cup of the aqueous Borax solution into one of the clear cups; set aside for Pour 1/8 cup glue and 1/8 water into the other cup. Mix these together well. Observe the aqueous Borax solution as you slowly pour your glue/water mixture into the Borax cup. Questions: 1. What do you observe in the cup? Describe what it looks like; color, state of matter, etc) 2. Where do you think this substance came from? 3. What do we call the new substance that appeared in the Borax solution? 4. The Borax solution is called “aqueous.” What does that mean? 5. You may remove your precipitate with your fingers (it’s safe) and responsibly experiment with it. (You will need to knead it for 2-3 minutes first to remove the excess moisture) List at least 2 physical properties of your precipitate: Clean up: Rinse everything well. You may not take your precipitate with you, but you may come pick it up after school if you like. Name _______________________ Hour______ 163 What’s your reaction to the spread of disease? Physical Science Background: This lab is designed to help you understand how communicable diseases are spread from only one infected person and how difficult it can be to determine who was the cause of the disease. You will be using a basic reaction type to determine who has “caught” the disease. Procedure: 1. Pick up a test tube with 10 mL of clear solution in it. Write your test tube number here: __________ 2. Find a person and pour all your contents into their test tube. Then transfer the contents back into your test tube. Finally, pour about half the contents back into their test tube. Keep track of the test tube numbers that you exchange with. 3. You will “share” test tube contents with a total of four people. First shared with test tube # ____________ Second sharing with test tube # __________ Third sharing with test tube # ___________ Fourth sharing with test tube # ___________ 4. Your teacher will bring around a dropper bottle and put 2 drops of a chemical into your test tube. If your solution turns cloudy, you are infected! Are you infected? YES NO WASH YOUR TEST TUBE OUT VERY WELL!!!!! Conclusion questions: 1. What test tube do you THINK was responsible? ________ 2. Use the rest of this page to brainstorm a way to find out who was the initial affected person 3. What test tube was actually responsible? _____________ 164 4. How many of your classmates ended up “infected?” ________ out of ____________ 5. Most of the test tubes started out with an aqueous sodium chloride solution. What is the formula for sodium chloride? 6. The solution added by your teacher was a silver nitrate solution. Write the formula for silver nitrate: 7. Write the chemical equation for this reaction: 8. What type of reaction was this? 9. What was the “solid stuff” that made it look cloudy white called? 10. Would you classify it as “easy, somewhat difficult, or very difficult” to find the source of the “infection” and why do you think that? EASY SOMEWHAT DIFFICULT VERY DIFFICULT Why: 165 Balancing Act Notes Page Law of Conservation of Mass (or,”You can’t play God”) Ag + H2S Mg + O2 Ag2S + H2 MgO Coefficient: How do you read this?? 166 H2 + O2 ---> H2O K + Br2 ---> KBr Zn + HCl ---> ZnCl2 + H2 C + H2O ---> CO + H2 Fe2O3 + CO ---> Fe + CO2 K2O + H2O ---> KOH Al + O2 ---> Al2O3 Al + HCl ---> AlCl3 + H2 C7H16 + O2 ---> CO2 + H2O Fe2(SO4)3 + KOH ---> K2SO4 + Fe(OH)3 167 168 Name ___________________ Period _______ Balancing Act Fill in the blank: Atoms are not ____________ or ____________ during a chemical reaction. Scientists know that there must be the ____________ number of atoms on each ____________of the ____________. To balance the chemical equation, you must add ____________ to the different parts of the equation. Directions: Balance each equation. Use can use the element list to tally how many atoms of each element are in the problem. Add coefficients to the equations to balance them. 1. ____Mg + ____O2 ____MgO Mg = O= Mg = O= 2. ____Ca + ____O2 ____CaO Ca = O= Ca = O= 3. ____ H2O2 ____H2O + ____O2 H= O= H= O= 4. ____N2 + ____ H2 ____ NH3 N= H= N= H= 5. ____ Cu2O + ____ C ____Cu + ____CO2 Cu = O= C= Cu = O= C= Name ____________________ 169 Period ______ Balancing Act and Reaction Types Use coefficients to balance each equation. Then decide what type of reaction is shown. 1. _____Na + _____MgF2 _____ NaF + _____Mg Reaction type: ________________________________ 2. _____Mg + _____ HCl _____MgCl2 + _____ H2 Reaction type: ________________________________ 3. _____Cl2 + _____ KI _____KCl + _____ I2 Reaction type: ________________________________ 4. _____NaCl _____Na + _____ Cl2 Reaction type: ________________________________ 5. _____Na + _____ O2 _____Na2O Reaction type: ________________________________ 6. _____Na + _____ HCl _____H2 + _____ NaCl Reaction type: ________________________________ 7. _____K + _____ Cl2 _____KCl Reaction type: ________________________________ CHALLENGE. _____CO2 + _____ H2O _____C6H12O6 + _____ O2 Name _____________________ Period ____ 170 Balancing Equations Balance the following equations. Some have polyatomic ions, so pay attention to those! If the equation is balanced, just write “OK” next to it. 1. H2 + N2 NH3 2. H2 + Cl2 HCl 3. P + O2 P4O10 4. BaCl2 + H2SO4 BaSO4 + HCl 5. Al2(SO4)3 + Ca(OH)2 Al(OH)3 + CaSO4 6. Cu + Cl2 7. Al2O3 CuCl Al + O2 8. Al + HCl AlCl3 + H2 9. KCl + AgNO3 KNO3 + AgCl 10. Al(OH)3 + NaNO3 Al(NO3)3 + NaOH 11. Al + CuCl2 AlCl3 + Cu 12. NaClO3 NaCl + O2 13. Zn + O2 ZnO 14. Al2(SO4)3 + BaCl2 AlCl3 + BaSO4 15. NaHCO3 Na2CO3 + CO2 16. K + H2O + H2O KOH + H2 + Ca3(PO4)2 AlPO4 + CaSO4 17. Al2(SO4)3 18. MgCl2 + AgNO3 Mg(NO3)2 + AgCl 19. NaClO3 20. NaCl + NaI + Cl2 NaCl O2 + I2 171 Name ________________________ Period _____ Bonding and Reactions Study Guide 1. Give an example of something that is a polar molecule. 2. Polar molecules will not mix with _____________________, but will mix with ____________________. 3. Which bond type occurs because of the stealing or transfer of electrons? 4. A cation is a _____________ charged ion while an anion is a ___________ charged ion. 5. The “magic number” of electrons that an element needs in the outer shell is ____ electrons. 6. The outer shell electrons are called __________________ electrons. 7. What is the chemical formula for ammonia? ________________ 8. What is the chemical formula for carbon dioxide? ________________ 9. What is the chemical formula for sugar? ________________ 10. What is the chemical formula for bleach? ________________ 11. Draw the dot diagram for Krypton: 12. Draw the dot diagram for Carbon: 13. Write the formula for the following compound: potassium and arsenic 14. Write the formula for the following compound: copper (I) and oxygen 15. Write the formula for the following compound: gold (II) and nitrogen 16. Write the formula for the following compound: calcium and phosphate 17. Write the formula for the following compound: beryllium and chlorite 18. What would be the name of the following compound: FeF2 172 19. What would be the name of the following compound: SiCl 4 20. What would be the name of the following compound: CaCO 3 21. What would be the name of the following compound: Sr 3(PO4)2 22. Two or more metals that are mixed together, but not chemically combined is called a(n) ________. 23. What type of reaction is shown by this: 24. What type of reaction is shown by this: MgCl2 Mg + Cl2 C2H6 + O2 CO2 + H2O 25. What type of reaction is shown by this: Hg + O2 HgO 26. What type of reaction is shown by this: ZnS + O2 ZnO + S 27. What type of reaction is shown by this: FeS + HCl FeCl + H2S 28. What type of reaction absorbs heat and feels cold? 29. What type of reaction releases heat and feels hot? 30. An “un-dissolvable” solid that can form from liquids in a reaction is called a(n) ______________. 30-32. List at least 3 things that can affect the speed of a reaction: 33. Balance this equation: K 2O + 34. Balance this equation: Li + 35. Balance this equation: Al + CaCl2 N2 HCl CaO + KCl Li3N AlCl3 + H2 Physical Science Semester One Exam 173 Your semester test will be ______ points Your best studying tool will be to review your old tests and focus on areas you struggled with the most. You can also review from the class website: www.wsr.k12.ia.us/srhigh/PhySci.htm. You can also log into your Quia account and look at all your old tests online. Below, you will find a list of tests you have taken this semester: _____ Measurements and Graphing Test Metric system Three types of graphs Scientific method Conversions _____ States of Matter Test Solid, liquid, gas, plasma Amorphous solids, Bose-Einstein Condensate Kinetic theory of Energy Charles, Boyle’s, Amonton’s, Combined Gas Law Archimedes, Pascal, Bernoulli ______ Matter Classification Test Homogeneous/Heterogeneous Compounds/Mixtures Physical/Chemical properties Chemical change clues _____ Element Symbols Test 20 “Must Know” elements _____ Atomic Structure and Models Test Parts of an atom Quarks, Leptons Atomic models: Dalton, Thomson, Rutherford, Bohr Electron Cloud model, Standard Model _____ Periodic Table Test Groups (Halogens, Noble Gases, Alkali, Alkaline Earth) Metals, Non-metals, Metalloids Mass number/Atomic Weight Isotopes/Ions _____ Reactions and Bonding Test Naming compounds Ionic/Covalent Bonds Making compounds with oxidation numbers Dot diagrams Reaction Types: Synthesis, Decomposition, Single Replacement, Double Replacement, Combustion Endothermic/Exothermic Polyatomic Ions Balancing Equations 174