chapter 18 vocab review

Front

Clouds that form in low, horizontal layers

Back

stratus

Front

Clouds that form at a high altitude, are thin & wispy, and composed of ice crystals

Back

cirrus

Front

Thick, fluffy clouds with flat bases formed by vertically rising air currents

Back

cumulus

Front

The change from gas to liquid

Back

condensation

Front

The change from liquid to gas

Back

evaporation

Front

A comparison of the actual amount of water   vapor in the air with the maximum amount the   can be held at a given temperature and   pressure.

Back

relative humidity

Front

The temperature at which saturation occurs   and condensation begins

Back

dew point

Front

Any form of water that falls from a cloud to   Earth’s surface.

Back

precipitation

Front

Any form of water that exists in the atmosphere as a gas

Back

water vapor

Front

Microscopic particles on which water vapor condenses to form cloud droplets.

Back

condensation nuclei