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Weather Part 1 Vocab
| Term | Definition |
|---|---|
| Air Pressure | The measure of the force with air molecules push on a surface. |
| Altitude | Elevation height above sea level. |
| Troposphere | Lowest layer of Earth's atmosphere; 0-17 km above earth's surface, site of weather, organisms, contains most atmospheric water vapor. |
| Stratosphere | 2nd layer of atmosphere; extends from 10 to 30 miles; location of zone layer; absorbs 95% of Ultraviolet radiation; temp increases. with altitude increases. |
| Thermosphere | The fourth layer of the atmosphere, in which temp increases as altitude increases. |
| Exosphere | The outer layer of the thermosphere, extending outward into space. |
| Atmospheric gases | Nitrogen makes up 78%, 21% oxygen, and remaining 1% is carbon dioxide, water vapor and other gases. |
| Nitrogen | Most abundant gas in the atmosphere 78% |
| Oxygen | Gas that makes up 21% of the air in Earth's atmosphere. It Passes into the bloodstream at the lungs and travels to all body cells. |
| Carbon Dixon | A greenhouse gas: a gas that absorb and radiates heat. |
| Traces Gases | Gases such as hydrogen, helium, carbon dioxide argon that exist in very small quantities in the atmosphere; gases that make up less than 1% of Earth's atmosphere. |
| Water Vapor | Water in the form of a gas. |
| Fossil Fuels | A natural substances formed form the buried remains of ancient organisms that can be used as a source of energy. |
| Greenhouse Gases | gases in Earth's atmosphere that traps 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 substances from a liquid to a gas. |
| Condensation | The change from a gas to a liquid. |
| Precipitaion | Any from of water that falls from clouds and reaches Earth's surface ( rain or snow or hail or sleet or mist) |
| Transportation | Evaporation of water from the leaves of a plant |
| Crystallization | The process by which a substance becomes 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 from water vapor in the air. |
| Frost | Ice formed when water vapor changes directly into ice cycles. |
| Green house Effect | A warning of Earth's surface and the air above it. It is caused by gasses in the air that trap energy from the sun. |