Energy Transformations Activities Students engage in different activities to observe energy changing form!
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1 Energy Transformations Activities Students engage in different activities to observe energy changing form!
2 Name: Energy Labs and Activities Activity 1: Static Electricity Glue this side down Procedure: Chew a life saver in the dark, while looking in a mirror or at your classmates mouths 1. What happens to the Wint-O-Green Life Saver when you chew it? 2. What is the scientific explanation for this? Energy Conversion: Activity 2: To Glow or Not to Glow? Observation Chart: Water Temperature Describe the Light Output (bright or dim?) Ice Water Hot Water 1. How does the water temperature affect the light output? 2. Why do you think the water temperature affected the light output? 3. What was the energy transformation that was taking place?
3 Activity 3: The Wire Hanger Procedure: 1. Feel the wire hanger. How does the temperature of the hanger feel to the touch? 2. Rapidly bend the wire hanger back and forth several times. Now feel the temperature of the hanger again. How does it feel now? 3. What energy transformation took place? Activity 5: The Hand Warmers Procedure: DO NOT OPEN THE NEW HANDWARMER YET. Follow all directions on the instruction sheet. Q1: What happens to iron when it is exposed to oxygen? Q2: How did the temperature change over time? Q3: What energy conversions took place? Old Packet New Packet Activity 4: Baking Soda and Vinegar Temperature Immediately At 3 mins At 6 mins Procedure: 1. Measure 40 ml of vinegar and pour into the plastic baggie. 2. Take the temperature of the vinegar and record it in the data table below. Activity 6: Radiometer Draw and label the radiometer: 3. LEAVING THE THERMOMETER in the baggie, add one spoonful of baking soda to the bag and watch what happens to the temperature. Record the final temperature below. Substance: Vinegar only Vinegar + Baking Soda Temperature: 1. Explain how light affects a radiometer: Q1: What happened during this reaction? Q2: What energy transformation took place when the baking soda and vinegar were mixed? 2. Would a radiometer work if the vanes were all one color? Why or why not? (Hint: read the information on how a radiometer works)
4 Materials: Activity 1: ~One Wintergreen life saver per student Activity 2: ~Two Glow-sticks per class period ~A cup of ice water and a cup of hot water Activity 3: ~Wire hangers (several, as they wear out/break easily) ~Vinegar ~Baking Soda ~Ziploc Baggies ~Thermometers Activity 4: ~Air-Activated hand warmers (one old one that has already been exposed to air and has run its course, and one new one per group) ~Ziploc Baggies ~Thermometers Activity 5: ~Radiometer ~Lamp ~Colored Pencils
5 Instructions for Activity 2: 1. Look at the two glow sticks. 2. Place one glow stick in the hot water cup and one glow stick in the cold water cup. Observe what happens after a few minutes. 3. Be sure to compare how much light is produced by each glow stick.
6 Instructions for Activity 3: 1. Feel the wire hanger. 2. Rapidly bend the hanger back and forth. 3. Feel the wire hanger again. Be sure to record your observations in your lab sheet.
7 Instructions for Activity 4: 1. Measure 40 ml of vinegar and pour into the plastic baggie. 2. Take the temperature of the vinegar and record it in the data table below. 3. LEAVING THE THERMOMETER in the baggie, add one spoonful of baking soda to the bag and watch what happens to the temperature. Record the final temperature
8 Instructions for Activity 5: 1. Take the temperature of the hand warmer that is ALREADY in the Ziploc baggie. Record the temperature in the data table. 2. Place the thermometer in the empty baggie. 3. Cut open the new hand-warmer and empty the contents into the Ziploc baggie. Take the temperature immediately and record it in the data table. 4. Set a timer for 3 min DO NOT ZIP THE BAG CLOSED 5. Take the temperature again after the 3 min timer goes off and record it in the data table. 6. Re-set the timer for 3 min. Take the temperature when it goes off and record it in the data table.
9 Instructions for Activity 6: 1. Draw a diagram of the Radiometer on your lab sheet. 2. Shine a light on the radiometer and observe what happens. 3. Read the background information on radiometers and answer all questions.
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