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Weather
Green and White Day Weather Vocab
| Term | Definition |
|---|---|
| Evaporation | the process that changes liquid water to gaseous water (water vapor) |
| Condensation | the change in state from a gas to a liquid |
| Humidity | the amount of water vapor in a given volume of air |
| Psychrometer | an instrument used to measure relative humidity |
| Cirrus | wispy feathery coulds made of ice crystals that form at high levels |
| Cumulus | cloud forming rounded masses heaped on each other above a flat base at fairly low altitude |
| Stratus | cloud forming a continuous horizontal gray sheet, often with rain and snow |
| Precipitation | any form of water that falls from clouds are reaches Earth's surface as rain, snow, sleet, or hail |
| Front | the boundary where unlike air masses meet but do not mix |
| Occluded | cut off, as in a front where a warm air mass is caught between two cooler air masses |
| Meteorologist | scientists who study weather and try to predict it |
| Cold Front | Boundry were air mass meets. Cold air is dense and tends to sink. Clouds typically form in a cold front. Heavy rain or snow may fall. tend of arrive quickly cause severe storms. After it passes colder drier air moves in. |
| Warm Front | If warm air is humid, light rain or snow may fall along the start of front. if air is dry scattered clouds form. Warm fronts are slow so weather could be rainy or cloudy for several days. After air is colder and humid. |
| Low Pressure | form along difference air mass boundries. The have warm and cold are areas . Rapid weather and storms are associalted with lows. Winds blow counter clockwise around the center of a low pressure system. |
| High Pressure | can be warm or cold depending on where they are from. The weather in Highs in typically fair. Winds blow clockwise around the centers of High |
| Coriolis Effect | The effect of Earths rotation on the direction of winds and currents. |
| Transpiration | When water from plants evaporates into water vapor in the atmosphere |
| alto | Clouds that are in the mid range of atmosphere |
| Nimbo | Clouds that are related to precipitation, rain, thunderstorms |
| Winds | Caused by changes in air pressure. Winds typically go in a horizontal movment of air from area of high pressure to an area of low pressure |
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