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2:4 Winds
Clouds
Term | Definition |
---|---|
Evaporation | The process by which water molecules in liquid water escape into the air as water vapor. |
Humidity | A measure of the amount of water vapor in the air. |
Relative humidity | The percentage of water vapor in the air compared to the maximum amount the air could hold at that tempatures. |
Psychrometer | An instrument used to measure relative humidity, consisting of a wet-bulb thermometer and a dry-bulb thermometer. |
Condensation | The process by which molecules of water vapor in the air become liquid water. |
Dew point | The temperature at which condensation begins. |
Cumulus | Clouds that form less than 2 kilometers above the ground and look like fluffy, rounded piles of cotton. |
Stratus | Clouds that form in flat layers. |
Cirrus | Wispy, feathery clouds made mostly of ice crystals that form at high levels, above about 6 kilometers. |