Science 7th grade

1. 1What is Precipitation?
   

   1. AWhen the dew point of air is below freezing point of water.
   2. BThe water that falls to the earth including rain,sleet,hail, and snow.
2. 2What is Frost Point?

   1. AWhen the dew point of air is below freezing point of water.
   2. BThe amount of water vapor in the air.
3. 3What is humidity?

   1. ACrystallized microscopic particles
   2. BThe amount of water vapor in the air.
4. 4What is freezing nuclei?

   1. ACrystallized microscopic particles
   2. BThe process of a liquid to a solid.
5. 5What is melting?

   1. AThe process of a solid to a liquid.
   2. BThe process of a liquid to a gas.
6. 6What is deposition?

   1. AWhen air reaches the frost point and there is no surface for the water vapor to crystallize on.
   2. BWhen the temperature of air drops below the frost point, the air's water vapor can skip the liquid stage by changing directly into a crystal of ice on a surface.
7. 7What is dew?

   1. AWhen the ground cools below the dew point of the surrounding air, the water vapor in the air that touches the cooler ground condenses into drops of water.
   2. BWhen water vapor crystallizes on the ground it forms light, feathery deposits of ice crystals.

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Test sobre Science 7th grade, creado por alyssaleigh el 03/03/2015.

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alyssaleigh

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