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In this activity, a spinning bicycle wheel resists efforts to tilt it and point the axle in a new direction.

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.

This is an activity about friction as well as kinetic and potential energy.

In this activity, learners design and build a toy top out of simple, everyday materials and have the option to use the toy as an artistic tool.