Our Weather and Water - Chapters 1 -4
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20 terms
Terms | Definitions |
|---|---|
 atmosphere | layer of gas that surround the planet |
| troposphere | layer of atmosphere closest to the earth |
| stratosphere | layer of atmosphere 6 to 30 miles above the surface of the earth |
| mesosphere | layer of atmosphere 30 to 50 miles above the surface of the earth |
| thermosphere | layer of atmosphere 50 to 370 miles above the earth |
| ionosphere | area in the thermosphere were gas molecules are broken into ions by the sun's radiation |
| humidity | amount of water vapor in the air |
| exosphere | outer most layer of the atmosphere |
| magnetosphere | area in exosphere where protons and electrons become trapped by the earth's magnetic field |
| aurora borealis | northen lights |
| aurora australis | southern lights |
| lapse rate | rate at which temperature decreases as you go up in altitude |
| meterology | study of the atmosphere |
| temperature | measure of the intensity of heat in the air |
| air pressure | pressure produced by the weight of air molecules |
| atmospheric pressure | pressure produced by the weight of air molecules |
| absolute humidity | actual amount of water in air |
| relative humidity | ratio of the amount of water in the air to the amount of water the air could hold at a particular temperature |
| wind | moving air |
| precipitation | water that escapes from the atmosphere |
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