If you watch the local news, you have probably heard meteorologists talk about the humidity as well as the temperature. In this Activity, you will use the fact that the amount of water vapor at saturation depends on the temperature to determine how humid the air is. The method involves cooling the air. If you cool the air enough, the water vapor begins to condense and form water droplets. The temperature at which this happens is called the dew point.

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Type Book ChapterPub Date 9/20/2011Stock # PB298X4_13a

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