Activity 5: Heat and Phase Change
Directions: Use the figure to determine whether each statement is correct or not.
Write TRUE if the statement is correct, and FALSE if the statement is wrong.

1. The temperature increases during melting.
2. Energy is required for each phase change.
3. When the water warms, the temperature decreases.
4. The temperature remains the same when an object freezes.
5. Water may change directly from solid to gas.

Questions:
1. What happens to the temperature as ice changes to water and water changes to vapor?
2. At which phase changes do water absorb energy?
3. At what phase changes do water release energy?
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