Multiple Intelligences Unit Plan Template EDUC 521 Unit Title: Chemical Thermodynamics Grade Level: 10-12 Teacher: Sarah Swisher Subject: Chemistry Time Frame: Eight 50-minute periods and two 90-minute block periods (approximately 2-2.5 weeks) Technologies: Standards: Objective(s): Intelligences: Students will be able to: Verbal/Linguistic Students will be able to describe the movement of atoms or molecules in a sample of matter at varying temperatures and how heat can transfer between objects. Students will be able to classify a chemical reaction as being either endothermic or exothermic, based on the release or absorption of heat. Following this idea, students will be able to determine if heat is absorbed or released when a material undergoes a physical change, such as condensation, freezing, Teacher computer with internet access, PowerPoint, overhead projector. Interpersonal During Lesson 1: The Brain Pop video, quiz, and supporting resources can be accessed from Logical/Mathematical the following website: http://www.brainpop.com/science/energy/heat/. Visual/Spatial Intrapersonal Naturalist Musical/Rhythmic Bodily/Kinesthetic During calorimetry lab, each group of students will need access to a computer with Excel in order to record their data. Additional access to the classroom’s wiki will require internet access and computers (outside of class in library or computer lab). CA- California K-12 Academic Content Standards Subject: Science Grade: Grades Nine Through Twelve Standards that all students are expected to achieve in the course of their studies are unmarked. Standards that all students should have the opportunity to learn are marked with an asterisk (*). Area: Chemistry Sub-Strand: Chemical Thermodynamics Concept 7: Energy is exchanged or transformed in all chemical reactions and physical changes of matter. As a basis for understanding this concept: Standard a: Students know how to describe temperature and heat flow in terms of the motion of molecules (or atoms). Standard b: Students melting, or evaporating. Lastly, students will be able to calculate the amount of heat absorbed or released by using the thermodynamics equation involving specific heat and latent heat of phase change. know chemical processes can either release (exothermic) or absorb (endothermic) thermal energy. Standard c: Students know energy is released when a material condenses or freezes and is absorbed when a material evaporates or melts. Standard d: Students know how to solve problems involving heat flow and temperature changes, using known values of specific heat and latent heat of phase change. USA- ISTE: National Educational Technology Standards for Students: The Next Generation Standard: 2. Communication and CollaborationStudents use digital media and environments to Materials: communicate and work collaboratively, including at a distance, to support individual learning and contribute to the learning of others. Indicator: Students: b. communicate information and ideas effectively to multiple audiences using a variety of media and formats. Standard: 3. Research and Information FluencyStudents apply digital tools to gather, evaluate, and use information. Indicator: Students: d. process data and report results. Intelligences: Lesson 1: Power Point slides with digital projector to show notes on heat and temperature. White board for displaying notes and student responses, and handouts for the guided practice and practice quiz from the video. Verbal/Linguistic Lesson 2: Digital projector and computer with PowerPoint notes, and whiteboard for writing examples and other notes. "Hot and Cold Packs" article and worksheets with applicable questions for students to complete. A hot and cold pack, ammonium nitrate, and ammonium chloride salts for the anticipatory set and guided practice. Logical/Mathematical Interpersonal Visual/Spatial Intrapersonal Lesson 3: Digital projector and computer with PowerPoint notes, and whiteboard for writing examples and other notes. "Thermodynamics" worksheets for independent practice and homework should be printed and passed out for students at the end of the lesson. Lesson 4: PowerPoint slides with digital projector to show quick write assignment and to display the definitions of key vocabulary terms. White board for displaying calorimeter design and the class data, and handouts for the mini-lab. Four food items with nutritional information on packaging for anticipatory set: marshmallows, chocolate chips, sunflower seeds, and potato chips). A worksheet entitled "Calorie Craze" will be given out to complete this anticipatory set. Necessary lab equipment includes beakers, peanut halves, analytical balance, matches, water, thermometers, paperclips, corks, Naturalist Musical/Rhythmic Bodily/Kinesthetic Bunsen burners, ring stands, and eye goggles. Lesson 5: The list of laboratory supplies for students will include: paperclips, thermometers, electronic balance, needles, corks, beakers, water, tape, aluminum foil, soda cans, tooth picks, rubber stoppers, matches, and rubber bands. Teachers may either choose to provide the food items or require that students bring their specific team’s food to class. Procedures: Intelligences: Day 1 and 2 Summary: At the beginning of the unit, students will learn how the kinetic energy, or motion, of molecules can change at different temperatures. Being able to imagine the molecular motion of particles is a skill that students will need to keep throughout the majority of the year in chemistry as complex concepts are explained. Students will also explain how heat flows from warmer to cooler objects and this is a concept that will be present throughout the remainder of the unit. Intrapersonal Verbal/Linguistic Visual/Spatial Interpersonal Bodily/Kinesthetic Musical Procedure: The teacher will show students two pictures: one with someone touching a hot stove and a second with someone touching an ice cube. Students will be asked to record in their science notebooks what each person will feel in these two scenarios and record an explanation of why this is. Students will additionally answer the following 2 questions in their notebooks: 1.) What does temperature measure? 2.) What is heat? After 3-4 minutes, the teacher will ask for student responses to the pictures and will create a general list of ideas about the two questions of temperature and heat. Students will be completing a lecture outline as the teacher shows notes on the digital projector and white board. The lecture outline includes spaces to provide definitions of important concept vocabulary and places to include relevant examples. The teacher will make reference to the scenarios of heat exchange shown during the anticipatory set to explain that heat flows from a warmer material to a cooler material. In the example of someone touching a hot stove, the heat from the hot stove transfers from the stove to our skin and we perceive this heat and our brain tells us to instinctively pull our hand away. In the picture with the person touching an ice cube, the heat from our warmer skin transfers to the colder ice cube and in turn, our skin feels colder as the ice cube "steals" some of our body heat. Again, the teacher will reinforce the concept that heat transfers from warmer to cooler materials and students will record these examples and explanations in their science notebooks. Students will watch a short video clip from the Brain Pop website which explains the difference between heat and temperature and how the molecules in a sample of matter move at different temperatures. From this video, students will be able to hear and see the concepts explained in a fun, engaging method. Students will be completing a set of multiple choice questions that relate to the Brain Pop video on heat that they watched. There are ten questions that students will read and record their answer to on their own paper. When all students have finished answering the ten questions, the teacher will go through the same questions on the overhead projector from the website. Students will offer their responses and the class will choose the correct answer which the teacher will click on the website. If correct, students can give themselves a point and if incorrect, students will fix the answer on their paper. The teacher should also review and reinforce the concepts so that students can clearly understand why the answer is the correct one. Students will then complete the following activity: Choose whether heat or temperature is the most accurate term for the phenomena in the following situations. Discuss your answers with a partner. Ex scenarios: “A thermometer reads 20 degrees Celsius.” And “Steam rises from a teakettle.” To close, students will provided with the following statement to which they need to respond in writing. "Temperature is a property of an object; heat is a property of a change. Give several everyday examples and try to restate this idea in your own words. Is this a good mnemonic to help you keep these concepts clear? If not, try to create one." Day 3 and 4 Summary: Students will learn about the two types of chemical reactions in terms of heat: exothermic and endothermic. Based on these definitions and concept illustrations, students will complete a laboratory experiment which asks them to determine the most ideal salts for the creation of a heat pack and for a cold pack. Procedure: The teacher will use a demonstration to introduce the main concepts within the chemical thermodynamics unit. To begin, the teacher should draw a pictorial representation of the chemical reactions that are going to occur on the white board in order to reinforce what is occurring. Students should be recording the same illustration in their science notebooks. The teacher should draw a flask filled to the one third mark with water and a salt called ammonium nitrate next to the flask. The teacher will drop the salt in the water and stir the contents. The teacher should draw a similar reaction but now with a salt called potassium nitrate next to the flask. The teacher will drop the salt in the water and stir the contents. The teacher will pass around both flasks so that students can see that one of them feels warm and the other feels very cold. Students will be completing a lecture outline as the teacher shows notes on the digital projector and white board. The lecture outline includes spaces to provide definitions of important concept vocabulary and places to include relevant examples. The teacher will make reference to the two chemical reactions shown during the anticipatory set to explain that some chemical reactions absorb heat (feel cold to the touch) and some release heat (feel warm to the touch). Reactions that absorb heat are referred to as "endothermic" and reactions that release heat are called "exothermic." The teacher might choose to also use the trick that "when heat EXits, the reaction is EXothermic" and "when heat ENters, the reaction is ENdothermic." The teacher should emphasize the concept that during a chemical reaction, heat can either be absorbed or released to the surrounding environment. This is an important concept which is covered in a later lesson of the unit. To help visualize these exothermic and endothermic reactions, the teacher will show students a hot-pack and cold-pack. In their notebooks, students will record their prediction of which represents an endothermic and exothermic reaction. The teacher will initiate the chemical reaction in the hot and cold packs by folding the bags and breaking the inner seals. Students will either confirm or correct their original prediction. The teacher will now list 6 processes on the digital projector that either represent endothermic or exothermic reactions. Students will record these 6 processes in their notebooks and predict whether the reaction absorbs or releases heat. Relevant examples include melting ice, freezing water, and photosynthesis. After about two minutes, the teacher should call on students to offer their responses and provide their explanations. The correct answers will be revealed and any misconceptions can be addressed. Students will read an article called "Hot and Cold Packs" individually for 10 minutes. Intrapersonal Verbal/Linguistic Logical/Mathematical Visual/Spatial Interpersonal Bodily/Kinesthetic Naturalist Then, students will break into groups of two to complete a series of questions regarding the article they read. Each student will be provided with a copy of the article and the accompanying questions to be answered. The teacher will be walking around to each student group during this time and asking students to present their answers to the teacher. The teacher will ensure that students are using the correct content vocabulary when discussing the chemical reactions inside a hot and cold pack. After student groups are done answering the questions, the teacher will collect and grade the questions for accuracy and comprehension. To close, Students will need to complete an "exit card" at the close of this lesson. The teacher will ask students to write 2-3 sentences about exothermic and endothermic reactions and any additional information they learned during the activity. These can be collected by the teacher before students leave the classroom and read over before the next day's lesson. If necessary, the teacher can go over any misconceptions in the next lesson and should plan to reinforce important concepts. Day 5 and 6 Summary: This lesson introduces students to the thermodynamics equation: Q = mc(delta)T. Students will apply the previously learned concepts about heat and temperature to mathematically calculate the heat lost or gained by a system. Procedure: The teacher will display several pictures on the digital projector and will ask students to record their explanations in their science notebooks. The displayed pictures will include the ocean sand and water and a metal spoon in a hot cup of tea and a plastic spoon in a hot cup of tea. The teacher will prompt students to respond to the following questions concerning the pictures: Ex: 1.) You and your friends go to the beach on a hot, summer day when the temperature outside is 90ºF. In terms of temperature and heat, describe how the sand would feel on your bare feet and how you think the ocean water might feel. 2.) Why might the sand and ocean water not feel the same to you even though it is 90ºF outside? After students have been given sufficient time to respond to these questions in their notebooks, the teacher will lead a class discussion on their thoughts about what is occurring in the pictures. A list of ideas will be placed on the whiteboard and the teacher will later reference these ideas after students have learned more about the concepts. The teacher will review the terms "temperature" and "heat" so that students remember the difference between the two terms that were previously covered. Students will be completing a lecture outline as the teacher shows notes on the digital projector and white board. The lecture outline includes spaces to provide definitions of important concept vocabulary and places to include relevant examples. The teacher will make reference to the pictures shown during the anticipatory set to explain that different materials require more or less heat to change their temperatures. This concept is known as the material's "specific heat." Because of this concept, the sand on a beach will feel very hot because it has a low specific heat (it requires very little heat from the sun to change its temperature by a lot). However, the ocean water has a much higher specific heat and requires immense amounts of heat from the sun to change its temperature. This is why the temperature of the ocean does not change much from winter to summer and from night Intrapersonal Verbal/Linguistic Logical/Mathematical Visual/Spatial Interpersonal Bodily/Kinesthetic to day, whereas the sand's temperature varies greatly. The teacher will display the equation Q = mc(delta)T and will explain the meaning of each variable. The Q stands for the amount of heat absorbed or released by the substance. This value is measured in "Joules" which is simply a unit for the amount of heat. A reminder about exothermic reactions releasing heat and endothermic reactions absorbing heat would be appropriate here. "M" stands for the mass of object and this is measured in the unit kilograms (kg). The "c" stands for the specific heat of the substance and the unit is in J/gºC. The teacher should provide students with a list of some common specific heat values such as those for water, copper, glass, and iron. The "delta T" stands for the change in the substance's temperature from start to finish. For example, if a pot of water is heated on the stove and changes from 20ºC to 80ºC, the change in temperature would be 60ºC. The teacher should walk students through an example of how to calculate the heat lost or gained by a system. The problem will be displayed on the digital projector and students have a copy of this in their lecture outline. The problem will read, "How much heat (in calories) is needed to raise 20 grams of water from 5 degrees C to 40 degrees C? The specific heat of water is 1.00cal/gC." The teacher will show students how to identify each variable in the word problem and substitute it into the equation. Students will be encouraged to show their work when going through an equation and will also be Students will go through a thermodynamics equation worksheet and try several problems on their own. The worksheet has four different problems, one of each is solving for one of the four different variables in the equation. Students are asked to show their process and product when solving these problems. After 10 minutes, students will confer with a peer next to them about their answers and provide assistance to one another if confusion arises. The teacher will also reveal the process and product using the overhead projector. To close, students will need to complete a worksheet on thermodynamic calculations for homework. The teacher will ask students to show their set-up, process, and product (the answer) for all problems. This worksheet will be checked the following day for accuracy and completion. If necessary, the teacher can go over any misconceptions in the next lesson and should plan to reinforce important concepts. Day 7 and 8 Summary: In this lesson, students will measure the amount of heat released from burning a food item and measuring the change in temperature of water. This is an important lesson to conduct in the earlier chapters since it emphasizes that energy is exchanged or transformed in all chemical reactions and during physical changes. Students will apply thermodynamic concepts to real-world situations such as finding the Calorie-content of specific foods. Procedure: To hook the students, the teacher asks students to record in their notebooks four delicious snack foods in order from what they think contains the least to greatest calories. Then, the teacher pulls out these four snack foods (marshmallows, chocolate chips, potato chips, and sunflower seeds) and hands them to students to read aloud the calorie content by locating this value on the nutritional labels. The teacher defines the following content vocabulary terms and students record them in their notebooks: calorimeter and Calories. Students connect their prior knowledge of the Intrapersonal Verbal/Linguistic Logical/Mathematical Visual/Spatial Interpersonal Bodily/Kinesthetic Q=mcΔT equation and how it relates to a calorimeter. The teacher can then ask students “Why do we as humans eat food?” Students will probably respond with the fact that people need energy to live. Calories equal energy. Using the example from the anticipatory set, the teacher asks students how food companies go about calculating and reporting the number of calories in a food. The teacher explains that we can determine the number of calories in a food by how much heat is produced by burning that food item in a calorimeter. The teacher explains the design of a calorimeter and how it can be used to calculate the number of calories contained in a sample of food. Students will follow along with a sketch of the calorimeter on a worksheet, labeling each part and annotating the drawing appropriately. The teacher shows the class a simple calorimeter made out of a soda can and how it can be used to measure the amount of heat given off during the combustion of the food sample. After explaining the calorimeter and use of the heat equation, the teacher initiates an engaging mini-lab to illustrate the concepts and check for comprehension. Students break up into groups of 2 and assemble their lab equipment at a spot on the lab bench. Students observe a burning peanut and write down their observations in their notebooks. The teacher guides the student groups through the accompanying worksheet which eventually calculates the number of Calories contained in the peanut by writing sample class data on the board. The teacher can ask for students' sample measurements of the initial and final masses of the peanut and the initial and final temperatures of the water. Using the sample data on the board, student use the Q=mcΔT equation to solve for the number of Calories in a peanut on their worksheets. The teacher walks around to each lab group to check the answers and address any questions or confusion. The teacher can provide the correct answer and using the nutritional information label on the can of peanuts, the students verify their answer with the number of Calories on the container. At this point, the teacher can chose to discuss, with student input, any sources of experimental error that may have caused discrepancies in the numbers. To close, Students will be instructed to do a quick write journal entry on the topic of heat and calories from the day’s lesson. The quick write activity prompt will read: "Mrs. Swisher’s favorite candy, a Dove Dark Chocolate bar, has a mass of 36.9 grams. In a calorimetry experiment, a 3.70 gram sample of this candy bar was burned in a calorimeter surrounded by 1000. grams of water. The temperature of the water in contact with the piece of burning candy bar was measured and found to increase from an initial temperature of 22.3°C to a final temperature of 35.6°C. The specific heat of water is 1.00 cal/g°C. Calculate the amount of heat (in calories and nutritional Calories) released when the 3.70 g was burned." The teacher announces that students will share their responses from their journals the next day in class. Day 9 and 10 Summary: At the end of the unit, students will design their own calorimeter from a list of given supplies based on the definition of a calorimeter. Students use the scientific method to measure heat flow during a combustion reaction. Students will prepare and submit a full scientific report demonstrating their comprehension of the concepts presented during the chemical thermodynamics unit. Procedure: This inquiry-based lab is design for students to build their own calorimeter, create an appropriate procedure, and test a baked and fried snack food of their choice. Students will measure the amount of heat released from burning their food item and measuring Intrapersonal Verbal/Linguistic Logical/Mathematical Visual/Spatial Interpersonal Bodily/Kinesthetic the change in temperature of water. In the design of their calorimeter, students will need to consider how to transfer as much heat as necessary into the system. An overlaying theme of the television show “Mythbusters” will pose the question to students: “Are baked snack foods really healthier than fried?”. Students will employ the appropriate steps of the scientific method to solve this problem. The teacher will divide the class into teams of 4 chosen beforehand (grouping together strong and weak students). Students groups will complete the pre-lab calculations, design the calorimeter, carry out the experiment, record data in Excel, and write the summary report. Product: Intelligences: Classwork and Homework throughout the unit. Intrapersonal Quiz on Exothermic & Endothermic Reactions and the Thermodynamics Equation Interpersonal Article on Hot and Cold Packs with discussion and short answer questions. Verbal/Linguistic Students build their own calorimeter, create an appropriate procedure, and test a baked and fried snack food of their choice. Students groups will complete the pre-lab calculations, design the calorimeter, carry out the experiment, record data in Excel, and write the summary report. Logical/Mathematical Visual/Spatial Naturalist Musical/Rhythmic Assessment: Intelligences: A formal, diagnostic assessment will be administered at the start of the unit to assess students' prior knowledge about heat, temperature, and chemical reactions. Intrapersonal Interpersonal A formative assessment in the form of a quiz will be given in the middle of the unit to measure students' comprehension of exothermic and endothermic reactions and their use of the thermodynamics heat equation. A summative evaluation will take place at the end of the unit when students take part in a "Mythbusters"-type of experimentation and discovery on calorimetry and measuring the number of Calories in a food item. Students will need to make use of their knowledge about heat flow, exothermic reactions, and the thermodynamics heat equation to accomplish this task. Students will be continually informally assessed throughout the duration of the unit through observation, student responses on the class wiki, calculations, and working in small groups. Additional progress monitoring during review of assigned classwork/homework, and by asking open ended questions throughout lectures. These types of informal assessment will give the teacher better insight into student comprehension of the content and address and areas of weakness or confusion. Presentation Ideas and Notes: (optional) During the last lesson, the teacher should remind students that the assumption of using any calorimeter is that all of the heat from the burning food item is being transferred to the sample of water. This assumption should be taken into consideration when designing the calorimeter to minimize the amount of the heat lost to the surroundings. Allow ample time for students to solve the problem within their team, limit the amount of materials per group if supplies are limited, and continually question students about their design to help them understand the basis of this investigation. If time permits, teams can present their calorimeter design and findings to the class. Other students can provide feedback and possible improvements to each other. Verbal/Linguistic Logical/Mathematical Visual/Spatial Naturalist Musical/Rhythmic Technologies to be used: