Lab Report: Build Your Own Thermometer Lab Answers

Physical Science Build Your Own Thermometer Rubric Criteria 4 3 2 1 Score Lab Report Format All four sections are completed and in the proper order: 1. Pre Lab answers 2. Scale description and data table 3. Analyze and Conclude answers 4. Post Lab answers One criterion is missing or poorly executed. Two criteria are missing or poorly executed. Three criteria are missing or poorly executed. /4 Pre Lab Questions, Scale Description Three well-written and/or logically answered entries: 1. Pre Lab question 1 2. Pre Lab question 2 3. Scale description Three entries: 1. Pre Lab question 1 2. Pre Lab question 2 Scale description Two entries One entry /4 Analyze and Conclude Questions All four questions are answered correctly and/or logically. Three questions are answered correctly and/or logically. Two questions are answered correctly and/or logically. One question is answered correctly and/or logically. /4 Post Lab Questions All three questions are answered correctly and demonstrate mastery of concepts relevant to the lab or lesson. All three questions are answered correctly. At least two questions are answered correctly. At least one question is answered correctly. /4 Data Table Efficacy All four criteria are well executed: 1. appropriate data table (two columns and three rows) 2. columns appropriately labeled 3. rows appropriately labeled 4. two temperatures recorded One criterion is missing or poorly executed. Two criteria are missing or poorly executed. Three criteria are missing or poorly executed. /4 Total Points _____ / 20 © 2013 Connections Education LLC. All rights reserved. Comments © 2013 Connections Education LLC. All rights reserved. / Physical Science Build Your Own Thermometer Rubric 1. Pre Lab answers 2. Scale description and data table 3. Analyze and Conclude answers 4. Post Lab answers 1. Pre Lab question 1 2. Pre Lab question 2 1. Pre Lab question 1 2. Pre Lab question 2 3. Scale description 1. appropriate data table (two columns and three rows) 2. columns appropriately labeled 3. rows appropriately labeled 4. two temperatures recorded Total Points _____ / 20 Comments Total Points: Lab Report Format: Pre Lab Questions: Analyze and Conclude Questions: Post Lab Questions: Data Table Efficacy: Comments: Name Date Class Lab Investigation 125 TEMPERATURE, THERMAL ENERGY, AND HEAT Build Your Own Thermometer Reviewing Content The particles of matter are in constant motion. The energy of motion is called kinetic energy, so the particles of matter have kinetic energy. As matter becomes warmer, its particles move faster. As a result, their kinetic energy increases. Temperature is related to kinetic energy. As temperature increases, kinetic energy also increases. One way to measure the temperature of matter is to place a thermometer in contact with it. Some of the matter’s kinetic energy is transferred to the thermometer if the matter is warmer than the thermometer. The increased kinetic energy causes the particles of the liquid in the thermometer to move farther away from each other. As a result, the liquid in the thermometer expands and rises up the tube. If the matter is colder than the thermometer, the thermometer loses energy to the matter. This makes the particles of the liquid in the thermometer move closer to each other, causing the liquid to contract and drop in the tube. Low-temperature particles have a low average kinetic energy. High-temperature particles have a high average kinetic energy. Reviewing Inquiry Focus When you analyze a model, you determine how well the model can be used to predict what happens in the real world. In this lab, you will put together a combination of materials that simulates how a real thermometer works. Then you will test it to see if it behaves like a real thermometer when it is placed in contact with warm water and then cold water. With these statements in mind, preview the Lab Investigation. Then answer the questions. How do you expect the water level to change when the apparatus is placed in warm water? In cool water? If you had a real thermometer that was accurate, how could you modify your experimental thermometer to read actual temperatures? Name Date Class 126 TEMPERATURE, THERMAL ENERGY, AND HEAT Build Your Own Thermometer INQUIRY FOCUS Analyze Models and Systems Problem Can you build a thermometer out of simple materials? Materials bowl of hot water bowl of ice water water of unknown temperature tap water 600-mL beaker clear glass juice or soda bottle, 20–25 cm tall clear plastic straw, 18–20 cm long food coloring plastic dropper cooking oil modeling clay metric ruler fine-point marker Procedure 1. Mix four drops of food coloring into a beaker of tap water. 2. Fill the glass bottle with the colored water. 3. Use a dropper to adjust the level of colored water in the bottle so that it is completely full to the top of the bottle. 4. Place a straw in the bottle. Use modeling clay to position the straw so it extends at least 10 cm above the mouth of the bottle. Do not let the straw touch the bottom. The clay should completely seal off the bottle’s mouth. Make sure there is as little air as possible in the bottle. 5. Using a dropper, add colored water into the straw to a level 5 cm above the bottle. 6. Place a drop of cooking oil in the straw to prevent evaporation of the water. 7. Place your thermometer into a bowl of hot water. 8. When the colored water reaches its highest level, use the fine-point marker to place a mark on the straw. 9. Place your thermometer in the bowl of ice water. Name Date Class Lab Investigation 10. Place a mark on the straw when the water reaches its lowest level. 11. Create a scale for your model thermometer. Divide the distance between the two marks into 5-mm intervals. Starting with the lowest point, label the intervals on the straw 0, 1, 2, 3, and so on. Describe your scale below. 12. Measure the temperature of two unknown samples with your thermometer. 13. Record both temperatures using the scale on the straw. 127 TEMPERATURE, THERMAL ENERGY, AND HEAT BUILD YOUR OWN THERMOMETER continued Name Date Class Lab Investigation BUILD YOUR OWN Analyze and Conclude Analyze Models and Systems Do you think your model accurately represents an alcohol thermometer? How is it like a manufactured thermometer? How is it different? Infer How can you use the concepts of matter and the kinetic energy of particles to explain the way your model works? Measure Approximately what Celsius temperatures do you think your model measures? Explain your estimate. Redesign Examine the structure and materials used in your model. Propose a change that would improve the model. Explain your choice. 128 TEMPERATURE, THERMAL ENERGY, AND HEAT THERMOMETER continued Name Date Class Lab Investigation 129 TEMPERATURE, THERMAL ENERGY, AND HEAT Build Your Own Thermometer Draw Conclusions In terms of thermal energy and heat, describe what happened when you placed your model thermometer in warm water. Infer Do you think your model thermometer would be practical for measuring the temperature of small amounts of material? Explain. Summarize Describe what you learned about how thermometers work and how they relate to the kinetic energy of particles of matter. List any questions you still have. What I learned What I still want to know Create a brochure to show how an alcohol thermometer works. Explain how the Celsius and Fahrenheit scales compare. For example, does 0° have the same meaning on each scale? What is normal body temperature on each scale? Use a diagram with labels and captions to communicate your ideas. Name: Date: Class: What I learned 1: What I still want to know 1: How do you expect the water level to change when the apparatus is places in warm wate? In cool water?: how could you modify your experimental thermometer to read actual temperatures?: Describe your scale below: Record both temperatures using the scale on the straw: Do you think your model accurately represents an alcohol thermometer? How is it like a manufactured thermometer? how is it different?: how can you use the concepts of matter and the kinetic energy of particles to explain the way your model works?: Explain your estimate: Explain your choice: What happened when you placed your model thermometer in warm water?: Explain: