Flashcards: Apologia - Physical Science - Module 3: The Atmosphere
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Created by:
e-learninglinks 
on April 21, 2010
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Apologia -- Exploring Creation With Physical Science - Module 3: The Atmosphere
Groups:
Cindy-2012, CC, All Cycles, EEL, Challenge A, B, & I, challenge 1, CC Tampa, Alabama Homeschoolers Rock!, 2011-2012 Co-op Class, grace academy (see more)
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Terms | Definitions |
|---|---|
 Atmosphere | The mass of air surrounding a planet |
| Atmospheric pressure | The pressure exerted by the atmosphere on all objects within it |
| Barometer | An instrument used to measure atmospheric pressure |
| Heterosphere | The upper layer of earth's atmosphere, which exists higher than roughly 80 kilometers (50 miles) above sea level |
| Homosphere | The lower layer of earth's atmosphere, which exists from ground level to roughly 80 kilometers (50 miles) above sea level |
| Troposphere | The region of the atmosphere that extends from ground level to roughly 11 kilometers (7 miles) above sea level |
| Stratosphere | The region of the atmosphere that spans altitudes of roughly 11 kilometers to 48 kilometers (30 miles) |
| Mesosphere | The region of the atmosphere that spans altitudes of roughly 48 kilometers to 80 kilometers (50 miles) |
| Jet streams | Narrow bands of high-speed winds that circle the earth, blowing from west to east |
| Heat | Energy that is transformed as a consequence of temperature differences |
| Temperature | A measure of the energy of random motion in a substance's molecules |
| Thermosphere | The region of the atmosphere between altitudes of roughly 80 kilometers and 460 kilometers |
| Exosphere | The region of the atmosphere above an altitude of roughly 460 kilometers |
| Ionosphere | The region of the atmosphere between the altitudes of roughly 65 kilometers and 330 kilometers, where the gases are ionized |
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