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In this activity, learners explore the history, design and motion of spinning tops. Learners work in teams of "engineers" to design and build their own tops out of everyday items.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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To understand how skaters turn in midair, try this little experiment! Individuals can do this activity alone, but it works better with a partner.

free Ages 8 - 18 10 to 30 minutes
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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