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Weather part 1 vocab
| Term | Definition |
|---|---|
| Mesosphere | The middle layer of atmosphere 51- 85 km coldest layer this is were meteors heat up |
| Air pressure | The measure of the force with witch air molecules push on a surface |
| Altitude | Elevation (height) above sea level |
| Troposphere | lowest layer of earth atmosphere 0-17km above earths surface, site of weather,organisms,contains most atmospheric water vapor |
| Stratosphere | The 2nd layer of atmosphere extends from 10-30 miles per hour location of ozone |
| Thermosphere | The fourth layer of the atmosphere in witch temperature increases as altitude increases |
| Exosphere | the outer layer of the thermosphere, extending outward into space |
| Atmosphere Gases | nitrogen makes up 78%, 21% oxygen and remaining 1% is carbon dioxide, water vapor and others gasses |
| Nitrogen (N2) | most abundant gas in the atmosphere (78)% |
| Oxygen (O2) | gas that makes up 21% of the air in earth atmosphere. it passes into the bloodstream at the lungs and travels to all body cells |
| Carbon dioxide | a greenhouse gas a gas that absorbs and radiates heat |
| Trace gases | gasses such as hydrogen,helium,carbon dioxide,and argon that exist in very small quantities in the atmosphere gasses that make up less than 1% of earths gasses |
| water vapor | water in a form of a gas |
| Fossil Fuels | a natural substance formed from the buried remains of ancient organisms that can be used as a source of energy |
| Greenhouse Gasses | gasses in Earth's atmosphere that trap heat near the surface |
| Water Cycle | the continuous process by which water moves from the 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 falls from clouds and reaches Earth's surface (rain or snow or hail or sleet or mist) |
| Transpiration | evaporation of water from the leaves of a plant |
| Crystallization | the process by which a substance becomes a solid, sort of like freezing |
| Surface Runoff | water that flows over land until it reaches lakes, rivers, or other areas |
| Groundwater Flow | water that is flowing beneath Earth's surface |
| Dew | water that has condensed on a cool surface overnight fro water vapor in the air |
| Frost | ice formed when water vapor changes directly into ice crystals |
| Ozone (O3) | part of Earth's upper atmosphere; it protects people by absorbing harmful rays |
| Greenhouse Effect | a warming of Earth's surface and the air above it. It is caused by gasses in the air that trap energy from the sun |
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