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weather part 1 vocab
| Term | Definition |
|---|---|
| air pressure | the measure of force with which air molecules push on a surface |
| altititude | elevation above sea level |
| troposphere | lowest layer of atmosphere 0 -17 above earth surface |
| stratosphere | 2 layer of atmosphere 10 -30 miles up |
| thermosphere | the forth layer in which teperture increses |
| exosphere | outer layer of thermosphere extending into space |
| atmospheric gasses | nitrogen makes up 78 21 oxygen 1 carbon dioxide |
| nitrogen | most abundant gas in atmosphere |
| oxygen | 21 percent of air.passes through bloodstream |
| carbon dioxide | a greenhouse gas |
| trace gasses | gasses such as hydogen heliem carbon dioxide |
| water vapor | water in the form of gas |
| fossil fuels | a natural substance from buried remains |
| greenhouse gasses | gasses that trap heat |
| water cycle | the cotinues process by which water moves |
| evaporation | the change of a substance from liquid to gas |
| condensation | the change from a gas to liquid |
| precipatation | any form of water that falls from clouds |
| transpiration | evaporation of water from leaves of plant |
| crystalization | the procces of which a liquid becomes a solid |
| surface runnoff | water that flows over land until it reaaches lakes |
| groundwater flow | water that is flowing below the surface |
| dew | watrer that is condenseed on a cool surface |
| frost | ice formedwhen water vaop changes |
| ozone | part of earths upper atmosphere |
| greehouse effect | a warming of earhs surface |