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14 Cards in this Set
- Front
- Back
Atmospheric pressure
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The pressure exerted by the atmosphere on all objects within it
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Barometer
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An instrument used to measure atmospheric pressure
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Heat
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Energy that is being transferred
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Heterosphere
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The upper layer of earth's atmosphere, which exists higher that 50 miles above sea level
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Homosphere
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The lower layer of earth's atmosphere, which exists from ground level to roughly 50 miles above sea level
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Jet stream
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A narrow band of high-speed winds that circle the earth, blowing from west to east
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Temperature
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A measure of the energy of motion in a substance's molecules
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Atmosphere
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The mass of air surrounding a planet.
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Troposphere
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The region of the atmosphere that extends from ground level to roughly 7 miles above sea level.
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Stratosphere
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The region of the atmosphere that spans altitudes of 7 miles to 30 miles.
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Mesosphere
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The region of the atmosphere that spans altitudes of 30 miles to 50 miles.
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Thermosphere
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The region of the atmosphere between altitudes of 50 miles (80 kilometers) and 460 kilometers.
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Exosphere
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The region of the atmosphere above an altitude of 460 kilometers.
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Ionosphere
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The region of the atmosphere between the altitudes of 65 kilometers and 330 kilometers where the gases are ionized.
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