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weather part 1 vocab
| Term | Definition |
|---|---|
| mesosphere | The middle layer of an atmosphere coldest layer this is where meteors burn down. |
| air pressure | the measure of force with which air molecules push on a surface. |
| altitude | elevation (height) above sea level. |
| troposphere | lowest layer of earth's atmosphere . where water vapors. |
| stratosphere | second layer of the atmosphere. |
| exosphere | the outer layer of the Thermosphere |
| thermosphere | the fourth layer of the atmosphere |
| atmospheric gases | nitrogen makes up 78% of the oxygen and the 1% is carbon dioxide |
| nitrogen n2 | most abundant gas |
| oxygen 02 | gas that makes up 21 percent. |
| carbon dioxide co2 | a green house gas |
| trace gases | gasses such as hydrogen |
| water vapor | water in the form of gas |
| fossil fuels | a natural substance formed from the buried remains of ancient organism. |
| green house gasses | 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 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 from water vapor in the air |
| Frost | ice formed when water vapor changes directly into ice crystals |
| Ozone 03 | part of Earth's upper atmosphere; it protects people by absorbing harmful rays from the sun |
| 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 |