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Catapult
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Build a catapult that transforms the potential energy of a twisted rubber band into kinetic energy. Experiment with design variations so that you can hit a target with a projectile.
The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.
Build A Hydrometer
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.