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vocab Mrs.corbett
science bell 4 mRs.corbett
| Air mass: | A huge body of air that has similar temperature, pressure, and humidity throughout |
| Air pressure: | A force that is the result of the weight of a column of air pushing down on an area. |
| Altitude: | Elevation above sea level. |
| Atmosphere | The mixture of gases that surrounds Earth. |
| Condensation | The process by which a gas, such as water vapor, changes to a liquid, such as water. |
| Density: | The amount of mass in a given space |
| Dew point | The temperature at which condensation begins. |
| Evaporation | The process by which molecules at the surface of a liquid, such as water, absorb enough energy to change into a gaseous state, such as water vapor. |
| Front: | The area where air masses meet and do not mix. |
| Humidity | A measure of the amount of water vapor in the air. |
| Hurricane: | A tropical storm that has winds of 119 kilometers per hour or higher; typically about 600 kilometers across. |
| Mass: | A measure of how much matter is in an object. |
| Precipitation: | : Forms when water such as rain, snow, sleet, or hail that falls from the sky reach Earth’s surface. |
| Thunderstorm: | a small, intense weather system that produces winds, rain, thunder, and lightning. |
| Wind: | The horizontal movement of air from an area of high pressure to an area of lower pressure. |
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