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In this challenge, learners make a helium balloon hover in one spot and then move it through an obstacle course using air currents.

In this activity, learners predict whether a ball on Earth or a ball on the Moon bounces higher when dropped and why.

This is an activity in which learners explore the effects of gravity, motion and momentum while creating art.

In this activity, learners discover what buoyancy is and determine the characteristics that make an object buoyant. Learners design, build, test, and evaluate boats made from a variety of materials.

This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.