Unit 5: The Atmosphere

Front

Atmosphere

Back

The layer of gas surrounding a planet that is held in place by gravity

Front

Composition

Back

The general makeup of something

Front

Greenhouse Gases

Back

Gases in the atmosphere that trap heat within the atmosphere

Front

Mesosphere

Back

The third layer of Earth’s atmosphere; located between the stratosphere and thermosphere

Front

Ozone

Back

Gas in Earth's atmosphere that absorbs most of the damaging high-energy ultraviolet radiation from the Sun

Front

Stratosphere

Back

The second layer of Earth’s atmosphere; located between the troposphere and mesosphere

Front

Thermosphere

Back

The fourth layer of Earth’s atmosphere; located between the mesosphere and exosphere

Front

Troposphere

Back

The layer of atmosphere closest to the surface of Earth; where weather occurs

Front

Air Mass

Back

A body of air extending over a large area (1,000 miles or more) that develops and retains specific characteristics of pressure, temperature, and humidity

Front

Air Pressure

Back

The force exerted by the atmosphere on Earth’s surface by the weight of the air above the surface