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13 Cards in this Set
- Front
- Back
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Condensation
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When water changes from a gas to a liquid because heat energy is released from water vapor.
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Evaporation
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When water changes from a liquid to a gas (vapor) because heat energy is added to the liquid.
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Saturation
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When air contains as much water vapor as it can. The air is completely full of water vapor.
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Humidity
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The amount of water in the air.
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Transpiration
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The ability of plants to draw water in through its roots and eliminate it through their leaves as vapor.
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Condensation Nuclei
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A small particle on which water vapor condenses in the air to form a cloud.
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Precipitation
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Water that falls from the sky in the form of rain, hail, snow, or sleet.
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Dew Point
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The temperature at which air is saturated with water vapor and condensation occurs.
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Relative Humidity
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The amount of water vapor in the air compared to the amount of water vapor needed to saturate the air at a given temperature. Written as a percentage.
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If pressure increases...
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temperature increases
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If pressure decreases...
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temperature decreases
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Is the meaurement of dew point the same every day?
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No, dew point changes from day to day, it is variable
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How do clouds form?
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Water evaporates into the air and rises. As the moist air rises, it cools when the temperature drops to the dew point. Water condenses onto the condensation nuclei and it forms a cloud.
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