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Defining Density

Defining Density

In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water. First, learners observe a small rock and a larger, heavier wooden block on a balance and then in a tank of water. The lighter rock sinks, while the heavier wooden block floats. Learners realize that there must be something more to sinking and floating than size or weight....

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