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12 Cards in this Set
- Front
- Back
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Atmosphere
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The mass of air surrounding a planet.
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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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Homosphere
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The lower layer of earth's atmosphere, which exists from ground level to roughtly 80Km (50 mi.) above sea level.
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Troposphere
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The region of the atmosphere that extends from ground level to roughtly 11 Km (7 mi.) above sea level.
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Stratosphere
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The region of the atmosphere that spans altitudes of 11 Km to 48 Km (30 mi.).
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Mesosphere
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The region of the atmosphere that spans altitudes of 48 Km to 80 Km (50 miles).
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Temperature gradient
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Term often used to describe the steady drop in temperature (in the Troposphere) as altitude increases.
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Jet streams
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Narrow bands of high-speed winds that circle the earth blowing from west to east.
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Heat
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Energy that is being transferred.
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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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Heterosphere
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The upper layer of earth's atmosphere, which exists higher than 80 Km (50 miles) above sea level.
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