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In this activity, learners use simple materials and basic tools to construct a special toy to explore pendulums. As the head of the toy bobs one way, the eyeballs bob the other way.

$1 - $5 per student Ages 8 - 18 10 to 30 minutes
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In this fun and, at times, hilarious force and motion activity, learners will use household objects to build a crazy contraption and see how far they can get a tennis ball to move.

$1 - $5 per group Ages 4 - adult 1 to 2 hours
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Learners build a yo-yo using a piece of wood, PVC pipe, and string. In doing so, learners explore the force of gravity and angular momentum.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes