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14 Cards in this Set
- Front
- Back
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Atmospheric pressure |
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 as a consequence of temperature differences |
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Heterosphere |
The upper layer of earth's atmosphere, which exists higher than 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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Narrow bands 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 random 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 roughly 460 kilometers. |
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Ionosphere
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The region of the atmosphere between the altitudes of roughly 65 kilometers and 330 kilometers, where the gases are ionized. |
