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

Through a series of simple body movements, learners gain insight into the relationship between time and astronomical motions of Earth (rotation about its axis, and orbit around the Sun), and also abou

In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.