This The Magical Diving Sub lesson plan also includes:
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First graders discuss and predict if a given object sinks or floats. They record their predictions on a data sheet. Pupils test the objects and organize them into floating/sinking groups. Students observe the floating and sinking of a toy submarine and infer what is causing the sub to float or sink. They predict what happens if different chemical substances are used in the sub and compare and contrast the effects different substances have on the sub.
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