# Heat trap

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• Publicado : 15 de mayo de 2011

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Heat Trap
Objective: To observe how solar energy can be used.
Question: How could you trap solar energy?
Prediction:
Materials: 2 glass jar with the same size, cold water, ice cubes, aplastic bag, a thermometer.
Procedure:
1. Use the thermometer to measure the water temperature.
2. Fill up the two jars with water and put 5 ice cubes into each one.
3. Put one of the jars into aplastic bag and seal it.
4. Place the two jars in a sunny.
5. After 40 minutes, use the thermometer to measure the water temperature and observe what happen to the ice cubes.

Conclusions:
a. Inwhich jar did the ice cubes melt?
b. What made one of the jars trap the sun heat?

Research:
a. What is the greenhouse effect?
b. How does a greenhouse work?

Heat Trap
Objective: To observehow solar energy can be used.
Question: How could you trap solar energy?
Prediction:
Materials: 2 glass jar with the same size, cold water, ice cubes, a plastic bag, a thermometer.
Procedure:1. Use the thermometer to measure the water temperature.
2. Fill up the two jars with water and put 5 ice cubes into each one.
3. Put one of the jars into a plastic bag and seal it.
4. Place thetwo jars in a sunny.
5. After 40 minutes, use the thermometer to measure the water temperature and observe what happen to the ice cubes.

Conclusions:
a. In which jar did the ice cubes melt?
b.What made one of the jars trap the sun heat?

Research:
a. What is the greenhouse effect?
b. How does a greenhouse work?

Heat Trap
Objective: To observe how solar energy can be used.Question: How could you trap solar energy?
Prediction:
Materials: 2 glass jar with the same size, cold water, ice cubes, a plastic bag, a thermometer.
Procedure:
1. Use the thermometer to measurethe water temperature.
2. Fill up the two jars with water and put 5 ice cubes into each one.
3. Put one of the jars into a plastic bag and seal it.
4. Place the two jars in a sunny.
5. After 40...