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Warm Up Question What is the name of the term that refers to the opposite of evaporation? Why do some days have dew on the grass, and other days the grass.

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Presentation on theme: "Warm Up Question What is the name of the term that refers to the opposite of evaporation? Why do some days have dew on the grass, and other days the grass."— Presentation transcript:

1 Warm Up Question What is the name of the term that refers to the opposite of evaporation? Why do some days have dew on the grass, and other days the grass is dry? Let’s assume the sprinklers are not a factor.

2 Relative Humidity

3 Absolute Humidity- The amount of water in grams that can be dissolved in the air at a particular temperature. Expressed in grams of water per kilogram of air. Saturation- When the air cannot dissolve any more water vapor. The air is said to be saturated, or at 100% humidity. Relative Humidity. Expressed as a percentage of the amount of water vapor that can be dissolved into the air at a particular temperature.

4

5 TableDry BulbWet BulbDifferenceRelative Humidity 11210 22220 3 15 42621 52825 64 72215 82413 92210 2410

6 GroupDry BulbWet BulbDifferenceRelative Humidity 11210278 22220283 32015558 42621564 52825378 64527 72215746 824131125 922101215 102410149

7 Closure: Describe the process of how relative humidity is determined in enough detail that an absent student could understand how to do it.

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