Understanding the Air Around Us

Front

Composition of Air

Back

78% Nitrogen, 21% Oxygen, 1% Other gases

Front

Nitrogen

Back

Most abundant gas in air

Front

Oxygen

Back

Essential for respiration

Front

Carbon Dioxide

Back

Used by plants in photosynthesis

Front

Water Vapor

Back

Varies in air, causes humidity

Front

Argon

Back

Third most abundant gas

Front

Air Pressure

Back

Force exerted by air on surfaces

Front

Atmosphere

Back

Layer of gases around Earth

Front

Troposphere

Back

Lowest layer, weather occurs here

Front

Stratosphere

Back

Contains ozone layer