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        K-5

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        Potential and Kinetic Energy: Spool Racer

        Most of the time when we think about energy, we think of movement and action. But energy can be stored in unmoving objects, too. In this video segment adapted from ZOOM, two cast members demonstrate how to build a spool racer, a tabletop vehicle that stores energy -- its source of power -- in the elasticity of a rubber band.

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