FREEZING AND MELTING

1. What happens when ice is heated?

• • A. It melts

• • B. It freezes

• • C. It evaporates

• • D. It condenses

2. What is the opposite of melting?

• A. Freezing

• B. Evaporation

• C. Condensation

• D. Sublimation

3. What is the process called when water turns into ice?

• A. Melting

• B. Freezing

• C. Evaporation

• D. Condensation

4. What happens to the molecules of water when it freezes?

• A. They move faster

• B. They move slower

• C. They stay still

• D. They disappear

5. What is the process called when ice turns into water?

• A. Melting

• B. Freezing

• C. Evaporation

• D. Condensation

6. What happens to a chocolate bar when it is left outside on a hot day?

• A. It melts

• B. It freezes

• C. It evaporates

• D. It condenses

7. What is the temperature at which water freezes?

• D. 212 degrees Fahrenheit

• C. 32 degrees Fahrenheit

• B. 100 degrees Celsius

• A. 0 degrees Celsius

Answer explanation

Water freezes at 0 degrees Celsius or 32 degrees Fahrenheit. This is the temperature at which water transitions from a liquid to a solid state, forming ice.

7. Which of the following is an example of melting?

• A. Ice cream melting on a hot day

• B. Water boiling in a pot

• C. Frost forming on a window

• D. Clouds forming in the sky

9. Which of the following is an example of freezing?

• A. Water evaporating from a puddle

• B. Ice cream melting on a hot day

• C. Water freezing into ice cubes

• D. Clouds forming in the sky

10. What is the difference between melting and freezing?

• A. Melting is the process of turning a solid into a liquid, while freezing is the process of turning a liquid into a solid.

• B. Melting is the process of turning a liquid into a solid, while freezing is the process of turning a solid into a liquid.

• C. Both melting and freezing involve the change of state from liquid to solid.

• D. Both melting and freezing involve the change of state from solid to liquid.