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In this activity, learners make a Benham Top to explore visual illusions and optics.

Learners explore the physical properties of a variety of balls and how they bounce.

Learners build at least two different spinners (tops) to investigate how mass distribution, size, and shape affect the length of time the spinner spins.

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.

In this activity, learners are challenged to design a wind-powered car using only a handful of household materials.