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Weather pt1
science
| Term | Definition |
|---|---|
| air pressure | the measure of the force with witch air monlecules push on a surface |
| altitude | elavation above sea level |
| troposphere | lowest layer of earths atmosphere 0-17 km above earths surface site of weather organisms contains most atmosphereic water vapor |
| stratosphere | 2nd layer of earths atmosphere extends from 10 to 30 miles up |
| thermosphere | 4th layer of the earths atmosphere in witch tempature increases as altitude increases |
| exosphere | the outer layer of the atmosphere extending into space |
| atmospheric gasses | nitrogen makes up 78% 21% oxygen and remaining 1% is carbon dioxide water vapor and other gasses |
| nitrogen | most abundent gas in the atmosphere (78%) |
| oxygen | gas that makes up 21% of the air in earths atmosphere passes into blood stream and lungs |
| carbon dioxide | a green house gas that absorbs and radiates heat |
| trace gasses | gasses such as hydrogen helium carbon dioxide |
| water vapor | water in the form of gas |
| fossil fuels | a natural substance formed from the buried remains of ancient organisms that can be used as a source of energy. |
| Greenhouse Gases | Gasses in earth's atmosphere that trap heat near the surface |
| Water cycle | The continuous process by which water moves from Earth's surface to the atmosphere and back. |
| Evaporation | The change of a substance from a liquid to a gas |
| Condensation | The change from a gas to a liquid |
| precipitation | any form of water that reaches earths surface |
| crystallization | the process of witch a liquid becomes a solid |
| surface run off | water that flows over land to rivers and lakes |
| groundwater flow | water flowing beneath earths surface |
| dew | water that has condensed on a cool surface over night |
| frost | ice formed when water vapor crystallizes |
| ozone (03) | part of earths upper atmosphere protects people from harmful rays |
| greenhouse afect | a warming of earths surface and the air above it caused by gasses capturing the suns energy |