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8) Weather
| Term | Definition |
|---|---|
| temperature | a measure of how hot or cold something is; specifically a measure of the average kinetic energy of the particles in an object |
| air pressure | the measure of the force with which air molecules push on a surface |
| humidity | the amount of water vapor in the air |
| wind | the movement of air caused by difference in air pressure |
| precipitation | any form of water that falls to Earth’s surface from the clouds; includes rain, snow, sleet and hail |
| weather | the short-term state of the atmosphere, including temperature, humidity, precipitation, wind and air pressure |
| thermometer | tool to measure temperature |
| rain gauge | tool to measure precipitation |
| psychrometer | tool to measure humidity |
| barometer | tool to measure air pressure |
| anemometer | tool to measure wind speed |