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Unit 6 Vocab Part 1
weather
| Question | Answer |
|---|---|
| weather | state of the atmosphere at a given time and place, with respect to variables such as temperature, moisture, wind velocity, and barometric pressure |
| temperature | specific degree of hotness or coldness as indicated on or referred to on a standard scale |
| dew point pressure | temperature at which water vapor present in the air saturates air and begins to condense; dew forms |
| relative humidity | the percent of saturation in the air; the expression of the ratio between the actual amount of water vapor in the atmosphere and the air's capacity at that temperature |
| psychrometer | instrument that determines dew point and relative humidity |
| dry/wet bulb thermometer | instrument used to determine the dew point temperature and the relative humidity |
| air pressure | force exerted due to the weight of air |
| barometer | instrument used to measure air pressure |
| millibars | unit used to measure air pressure |
| isobars | type of isoline on a weather map used to indicate equal air pressure points |
| wind | movement of air caused by Earth systems |
| wind vane | weather instrument used to determine the direction of the wind |
| anemometer | instrument with rotating cups used to determine wind speed |
| condensation | change in state from vapor to liquid, the loss of water vapor from warmer air onto a cooler surface, such as the condensation on an ice water glass |
| monsoon | wind system, most often with heavy rains that influences large climatic regions and reverses directions seasonally |
| sea breeze | local wind blowing from the sea toward the land when the air pressure is higher over the sea than over the land |
| land breeze | local wind blowing from the land toward the sea when the air pressure over the land is greater than the air pressure over the sea |
| coriolis effect | observed path of an object or fluid at the surface of the earth undergoing a predictable horizontal deflection |
| condensation nuclei | solid surface onto which water vapor may condense to form liquid droplets, in the formation of clouds |
| deposition | the process of water vapor changing directly into ice crystals |
| dew | condensation occurring on earths surface |
| frost | deposition of minute ice crystals formed when water vapor condenses at a temperature below freezing |
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