Snapshot What is matter? Write a few sentences describing what you understand about matter. What is it? What is it made of? Are there different kinds of matter? SNAPSHOT: Copy the chart and fill in the empty spaces Times Up! • PS.1 Test Make-ups What is matter? Matter is anything that has mass and takes up space. Particle Theory of Matter All matter is made up of tiny particles Each substance has unique particles that are different from other particles Empty spaces exist between particles Particles attract each other Particles move all the time Particles at high temperatures move faster then particles at lower temperatures States of Matter Solid Liquid Gas Plasma SOLID A solid is matter that has that has definite size and shape Particles close together have a stronger attraction Example: Put a sneaker in a box. It stays the same. SOLIDS LIQUID A liquid takes the shape of any container Particles further apart, strong attraction Example: Pour juice into a glass. The juice will take on the shape of the glass. Liquids Gas Gas is matter that has no definite shape Gases fill whatever container they are in Particles far apart, weak attraction Example: The air all around us is a gas. GAS Phase Changes PLASMA Plasma Plasma is matter with positively charged and negatively charged particles Forces strip electrons (sub-particles) from particles Most common state of matter in the universe States of Matter • BrainPop – Record definitions as you watch – Take quiz after the video Snapshot 1. Objects with definite size and volume are ________. 2. Matter that fills up the container it is in is in the ________ state. 3. Matter that takes the shape of its container is in the _________ state. 4. Electrically charged gas is called _________. 5. What happens to the chemical structure of matter when is goes from gas to liquid? Test Review Foldable Outside: Solids Liquids Gas Plasma Shutter Fold Label the four quadrants Foldable Solids are…. Liquids are… Gases are… Plasma is…. Inside: Definition Illustration Example Snapshot List and define the four states of matter Snapshot List and define the four states of matter QUIZ • Quiz on Thursday – States of Matter – Physical vs Chemical Properties Snapshot All matter is made up of tiny _______1______ _____2_____ spaces exist between particles Particles ____3_____ each other Particles _____4____ all the time Particles at ____5_____ temperatures move faster Snapshot • Draw the diagram. Label the correct state of matter shown in each phase (1-4) Times Up! • Quiz- Thursday – States of Matter – Physical and Chemical chnages Homework Check • Review and make corrections • Store in Matter section of binder States of Matter Lab • We will observe how the temperature of ice water changes over time • We will observe several phase changes during our experiment • IV- Time • DV- Temperature States of Matter Lab • Constants – Amount of milk, sugar, salt, flavoring, etc – Type of bags – Shaking time – Room temperature States of Matter Lab • Title – The effect of IV on the DV States of Matter Lab • Problem Statement – What question are we answering? States of Matter Lab • Research – Use notes and textbook to answer research question – Answer question #3 tonight for homework States of Matter Lab • Hypothesis – Form a hypothesis – If the IV is _________, then the DV will __________ Materials • • • • • • • • • • • • 240mL milk 45mL sugar 80mL salt 2.5mL vanilla or chocolate flavoring 2 empty cups ice large zipper bag small zipper bag spoons Celsius thermometer Tub 1 Paper towel Procedure • Place the tub on your desk. • In the small zipper bag, pour – 240mL of milk – 45mL of sugar – 2.5mL vanilla flavoring • CAREFULLY seal the bag and shake up the mixture thoroughly. Procedure • In the large bag add enough ice to cover the small bag • Add 80mL of salt • Take the temperature of the ice and record this on your lab sheet • CAREFULLY SEAL THE BAG AND GET READY TO MAKE A PHASE CHANGE! Procedure • Take turns shaking the bag inside of the tub. Hold the bag by its corners. Shake the bag for 3 minutes and take the temperature of the ice. Record your data. • Continue to flip the bag and take the temperature every 3 minutes until your milk has become a solid. Record your times and temperatures in the data table. • Remember to keep the bag in the tub at all times. It should take 10 to 15 minutes to freeze. Procedure • When you have ice cream, take the smaller bag out and wipe it off with a paper towel. • Dish out the ice cream equally into the cups, and ENJOY! • Clean up your area. (Leave it neater than you found it!) Project • Graphing project DUE: Tuesday, October 14th Snapshot 1. Which metric prefix is equal to 10-3? 2. Two marbles are placed in the graduated cylinder below. Each marble is the same size. What is the volume of one marble? Times Up! • Reminders– Quiz – Project due Tuesday Data Table Time Temperature 0 0 3 -2 6 -4.5 9 -6 12 -9 15 -10.5 Final -12 Graph • • • • • X-axis- IV Y-axis- DV Label each axis Provide an appropriate scale Title your graph Conclusion Answer the following questions with full sentences: • Did the data support your hypothesis? • What state of matter was the milk when you began? • What state of matter was the milk when you were done? • What was the temperature of the ice when you started? When ended? • In order to change the phase of the milk, what had to be removed? • What phase change did the ice go through? • Why did the outside of the bag get wet? (Assume that your bag did not spring a leak.) Properties • 2 Types – Physical= descriptive • Observed using 5 senses • Found without destroying object • EX: color – Chemical • How it reacts with something else • Changes original substance into new substance • EX: Combustibility Physical Properties • • • • • • Shape Mass Density Solubility Odor Melting point – Point at which solid becomes a liquid • Boiling point – Point at which liquid becomes a gas • Color Chemical Properties • pH – acidity • Combustibility – How easily it burns • Reactivity – How easily it reacts with other substances PS.2 The student will understand & investigate the basic Physical changes in matter A Physical change is a change in how matter looks, but not the kind of matter is it is. Tear Cut Folded Written Liquid Solid Gas Mixture Solution PHYSICAL CHANGES Chemical changes in matter New Matter is formed Burning Rusting Cooking CHEMICAL CHANGES Snapshot • What are the two type of properties? • Give an example of each. Times Up! Science Fair • Title and Purpose due Tuesday October 14th • Title: The effect of ____IV____ on ____DV_____ • Purpose: – The purpose of this project is to determine… – The results of this experiment will help… – While it is already known that __________, additional information on __________ will help to… 54 Properties of Matter foldable Outside: List each of these properties on your ten flaps Inside: • Define property • Identify each as either a Physical or a Chemical Property Color Shape Acidity Mass Melting Point Combustibility Odor Density Reactivity Boiling Point Physical vs Chemical Properties Practice Snapshot 1. What are the four 4. What type of property states of matter? is each of the following? 2. Which state of matter a. acidity has definite volume but b. mass no definite shape? c. boiling point 3. What are the two types d. Combustibility of properties used to e. Color describe matter? QUIZ • States of Matter • Physical vs Chemical properties Different Ways to Categorize What is another way we could classify matter? Phases is a category based on movement and temperature We can also categorize based on type of particles and how they combine Different Ways to Categorize State / Phase Movement Attraction Classification / Type Kind of particles How they combine Matter Classification Pure Substances - Elements - Compounds Mixtures Classes of Matter • 3 Classes – Elements • Atoms in their simplest form that have the same properties • Cannot be broken down into a simpler type of matter. • Same number of protons • Example: Oxygen – Compounds • 2 or more elements that are chemically combined in a fixed ration • You can write a formula for it – Ex. Water H2O – Mixtures • Two or more substances not chemically combined • Can be separated manually or without a chemical change Elements • Made up of atoms that are all the same Compounds • Two or more atoms chemically bonded together Mixtures • Two or more different substances not chemically bonded Mixtures Mixture of elements Mixture of compounds Mixture of elements and compounds Draw it! • Draw an image of 1. 2. 3. 4. 5. an element a compound a mixture of elements a mixture of compounds a mixture of elements and compounds Please turn in your Title & Purpose • Draw the following diagrams. Label each one as either an element, a compound, or a mixture Which is it? • Classify each example as a: – Element • One type of particle – Compound • Two or more particles combined together – Mixture • Two or more particles not combined together Watch it! • BrainPop Snapshot • Draw an example of: – an element – a compound – a mixture Snapshot • Identify each substance as a element, compound, or mixture: 1. 2. 3. 4. 5. 6. air pure water soil copper salt helium Reminders • DUE TODAY– Graphing Project – Science Fair Title and Purpose • QUIZ on elements, compounds, and mixtures • 1/2 phase- Thursday • 7/8 phase- Wednesday Substances Vs. Mixtures: Identify each as a E, C, or M 1. 2. 3. 4. 5. 6. 7. Sodium Water Soil Coffee Oxygen Alcohol Carbon dioxide 8. Cake batter 9. Air 10.Soup 11.Iron 12.Salt water 13.Ice cream 14.Nitrogen 15.Eggs 16.Blood 17.Table salt 18.Nail polish 19.Milk 20.Cola Classes of Matter • Foldable on elements, compounds, & mixtures – Definition – Examples – Illustration • Page 449- use textbook chapter as a reference • Elements, Compounds, Mixtures classification Exit Ticket 1. What is the definition of: a. and element b. a compound c. a mixture 2. Give an example of each Snapshot • Draw the diagrams and label each with the correct class of matter. 1 2 3 Times Up • Take out PS.2 Classification of Matter Notes • Any late work – project – science fair title and purpose Types of Mixtures • Homogeneous – Homo= same – Look the same throughout • Ex. Alcohol & water • Heterogeneous – – – – Hetero = Different Visibly have different substances & different phases Mechanically separated Example: Salt and pepper combined Homogenous Mixtures • Salt water • Milk • Air Heterogeneous Mixtures • • • • Salad dressing Soils Rocks Cereal Copy the chart and fill in the empty spaces Solutions • Solution – Contains two or more components • • • • • One component is dissolved in the solution Particles are very small Will not settle or separate Homogeneous Ex. Sugar dissolved in water Suspensions vs Colloids • Suspension – Visibly contains two states • Solid mixed in liquid • Will separate if allowed to sit • Heterogeneous • Ex. Flour & water • Colloid – Contains two or more states • Cannot be seen under microscopes • Will not settle or separate • Homogeneous • Ex. Milk Tyndall Effect • BrainPop • Elements, Compounds, Mixtures Worksheet Snapshot • Draw the diagrams and label each with the correct class of matter. 1 2 3 Quiz Mixtures Lab • Materials – Per group• • • • • • • six test tubes half full of water test tube seals 0.5 g sugar a few drops of milk 0.5 g CuSO4 (copper sulfate) 2 mL olive oil 0.5 g soil – Per student• Lab sheet • Pencil Snapshot • Define each of the following terms – homogenous mixture – heterogenous mixture – solution – suspension – colloid Times Up! • Any late work? – projects – science fair title and purpose • Take out PS.2 notes • Study guide due Wednesday • Organic Types of Compounds – Any compound containing the element carbon and Hydrogen • C&H • Usually found in organisms • Ex. glucose C6H12O6 • Inorganic – Compounds that are not organic – Does not contain C& H Organic vs Inorganic Organic vs Inorganic pH • How many H+ ions are in a substance • Ranges from 0 to 14 – Acidity • Able to make H3O+ • pH of 6.9 and below – Basicity • Able to make OH• pH of 7.01 & Higher – Neutral • pH of 7.0000 • When an acid and a base combine – Salt & water are produced Acids vs Bases Acids: Bases: Taste sour. Taste bitter. Give sharp stinging pain in a cut or wound. Feels slippery Turn blue litmus paper red. Turn red litmus paper blue. pH of 0 to 6.9 pH of 7.01 to 14 Ex. HCl NaOH Salts • Result of neutralizing acid and base • Contains a positively charged ion (+) and a negatively charged ion (-) • Ex. 3HCl + 3NaOH 3NaCl + 3H2O • hydrochloric acid + sodium hydroxide sodium chloride + water – Cancel each other out – Neutral • Form crystals • Different colors, tastes • Metal or positive parts comes first NaCl pH Scale • Foldable • 15 sections 20 mm wide pH Scale Acids 0 1 2 3 4 5 Bases Neutral 6 7 8 9 10 11 12 13 14 pH Scale Snapshot • Write each sentence and identify the substance being described as either an acid or a base. 1. ____ Taste bitter 2. ____ Taste sour 3. ____ Have a pH higher then 7 4. ____ Have a pH lower then 7 5. ____ Turn litmus paper red 6. ____ Turn litmus paper blue Times Up! • Clear desks of everything but a pencil pH Lab • Read instructions to yourself as I read them out loud • Raise you hand if you have any questions Materials • • • • • • Lab sheet Pencil Six liquids One eye dropper Two piece of red litmus paper Two piece of blue litmus paper pH Lab • Step 1: Make observations – Use your senses – WAFT, don’t sniff! – No tasting! • Step 2: Make a prediction – Will each substance be an acid or a base? pH Lab • Step 4: Test substance 1 by dropping ONE drop of liquid on to the red and the blue litmus paper • Step 5: Test each other substance by dropping ONE drop of each liquid on to the red and the blue litmus paper Acids and Bases • BrainPop