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Water in the Air

Water in the Air. When water drops form on a cold glass, the water comes from the air around the glass. Water vapor is water in the form of a gas. The amount of water in the air is called humidity. Liquid water becomes a gas called water vapor through the process of evaporation.

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Water in the Air

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  1. Water in the Air • When water drops form on a cold glass, the water comes from the air around the glass. • Water vapor is water in the form of a gas. • The amount of water in the air is called humidity. • Liquid water becomes a gas called water vapor through the process of evaporation. • The change from a gas to a liquid is called condensation.

  2. Water in the Air • When cool and warm air meet, the lighter warm air is pushed higher in the atmosphere. • Whenever warm air rises and cools, the water vapor in the air condenses. • Water droplets in the air form clouds.

  3. “Cloud in a Jar” Experiment Discuss the following questions with your group then record your response in your science notebook. • How is the process creating a mini cloud similar to the way real clouds are formed? • How is the process of creating a mini cloud different from the way real clouds are formed? • Did you see any precipitation in the jar? If so, what caused it? • Where in the jar did evaporation, condensation, and precipitation occur?

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