Apologia Physical Science, Module 3

Front 1

Atmospheric pressure

Back 1

The pressure exerted by the atmosphere on all objects within it

Front 2

Barometer

Back 2

An instrument used to measure atmospheric pressure

Front 3

Heat

Back 3

Energy that is being transferred

Front 4

Heterosphere

Back 4

The upper layer of earth's atmosphere, which exists higher that 50 miles above sea level

Front 5

Homosphere

Back 5

The lower layer of earth's atmosphere, which exists from ground level to roughly 50 miles above sea level

Front 6

Jet stream

Back 6

A narrow band of high-speed winds that circle the earth, blowing from west to east

Front 7

Temperature

Back 7

A measure of the energy of motion in a substance's molecules

Front 8

Atmosphere

Back 8

The mass of air surrounding a planet.

Front 9

Troposphere

Back 9

The region of the atmosphere that extends from ground level to roughly 7 miles above sea level.

Front 10

Stratosphere

Back 10

The region of the atmosphere that spans altitudes of 7 miles to 30 miles.

Front 11

Mesosphere

Back 11

The region of the atmosphere that spans altitudes of 30 miles to 50 miles.

Front 12

Thermosphere

Back 12

The region of the atmosphere between altitudes of 50 miles (80 kilometers) and 460 kilometers.

Front 13

Exosphere

Back 13

The region of the atmosphere above an altitude of 460 kilometers.

Front 14

Ionosphere

Back 14

The region of the atmosphere between the altitudes of 65 kilometers and 330 kilometers where the gases are ionized.