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Knows that scientists develop explanations using observations (evidence) and what they already know about the world (scientific knowledge); good explanations are based on evidence from investigations.

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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It's Raining Cats and Dogs...and Fish and Frogs...and Birds

Using a recent event, this example illustrates some useful attributes of the nature of science and its approach to questions.

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