1. Melting is the process in which the kinetic energy of particles:

A. increase.

B. decrease.

C. remain the same.

2. Which of the following describes the process of melting?

A. solid to a gas

B. solid to a liquid

C. liquid to a gas

D. liquid to a solid

3. All other factors being equal, in which case would snow melt the fastest?

A. high temperature, low humidity

B. low temperature, low humidity

C. high temperature, high humidity

D. low temperature, high humidity

4. During the melting of a substance, which of the following remains constant?

A. the volume only.

B. the density only.

C. both the volume and density.

D. neither the volume nor the density.

5. On which day would snow melt the slowest?

A. cold and dry

B. cold and raining

C. hot and dry

D. hot and raining

6. Particles in the solid phase are capable of:

A. vibration only.

B. position changes only.

C. both vibration and position changes.

D. neither vibration nor position changes.

7. Particles in the liquid phase are capable of:

A. vibration only.

B. position changes only.

C. both vibration and position changes.

D. neither vibration nor position changes.

8. All other factors being equal, which air mass would transfer more heat to the ground?

A. 10% humidity

B. 30% humidity

C. 50% humidity

D. 70% humidity

9. When snow cover on the land melts, the water will most likely become surface runoff if the land surface is:

A. unconsolidated gravel.

B. grass covered.

C. porous.

D. frozen.