Earth's Atmosphere Terms

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Water Cycle

Back

The continuous process by which water moves from Earth's surface to the atmosphere and back.

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Transpiration

Back

The process by which plants release water vapor into the air through stomata.

Front

Condensation

Back

The process by which water vapor in the air is changed into liquid water.

Front

Precipitation

Back

Any form of water that falls from clouds and reaches Earth's surface.

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Atmosphere

Back

The envelope of gases surrounding the earth or another planet.

Front

Ozone

Back

A form of oxygen that has three oxygen atoms in each molecule instead of the usual two.

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Air Pressure

Back

The force exerted onto a surface by the weight of the air.

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Barometer

Back

An instrument measuring atmospheric pressure, used especially in forecasting the weather.

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Altitude

Back

The height of an object or point in relation to sea level or ground level.

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Troposphere

Back

The lowest region of the atmosphere, where weather occurs.