Condensation

Q.

Define Fusion.

Q.

Give one application of expansion and contraction each in solids, liquids and gases.

Q. The phase change of a substance from gas to a liquid is called ______.

1. evaporation
2. distillation
3. condensation
4. boiling

Q.

Define: Fusion

Q. When humidity increases beyond the dew point, it results in:

1. Winds
2. Condensation
3. Mirage
4. Evaporation

Q. Pick out the correct statements regarding the boiling point and the condensation point for a substance.

1. Boiling point and condensation point are not the same.
2. At boiling point, liquid changes into gas.
3. During condensation, gas converts to a liquid.
4. At condensation point, gas changes into liquid.

Q.

What are the basic effects of heat?

Q. If the earth had no atmosphere, then at day time, the sky would appear as ___.

1. red
2. black
3. blue
4. white

Q. If the earth had no atmosphere, then at day time, the sky would appear as ___.

1. white
2. red
3. black
4. blue