Chapter 8 Weather Vocabulary Words Flashcards
Atmosphere
The whole mass of air surrounding the earth
Insolation
Exposure to the suns rays
Troposphere
The lowest densest part of the earths atmosphere in which most weather changes occur and temp. Generally decreases rapidly
Air pressure
Force of unit per area exerted on the earths surface
Weather
The state of the atmosphere with respect to heat or cold
Barometer
An instrument that is used to measure air pressure
Water vapor
Water in a vaporous form diffused in the atmosphere but below boiling temp.
Humidity
Moisture in the air
Evaporation
To change from liquid to gas
Condensation
A liquid obtained by condensation of a gas or vapor
Relative humidity
The amount of water vapor present in the air
Stratus cloud
Genus of low-level cloud characterized by horizontal layering
Cumulus cloud
Often precursors of other types of clouds such as cumulonimbus
Cirrus cloud
Thin wispy clouds blown by high winds
Fog
A cloud that forms at ground level