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Knows that when liquid water disappears, it turns into gas (vapor) in the air and can reappear as a liquid when cooled.

What makes cities hot? An urban heat island activity

Explore how differences in surfaces can cause temperature differences on the rnground and in the air, and why

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Making Clouds: Aerosol-Cloud Interactions in a Beaker

This example discusses the process of cloud formation and the ability of cloud droplets to scatter light. A demonstration \r\nthat creates a cloud in a beaker is described.

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