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In this activity, learners sort different natural phenomena into categories (they occur on Earth, on the Moon, or on both), and then model how energy moves during a quake using spring toys.

In this activity (26th on the page), learners construct an easy-to-build device and test motor learning.

In this experiment, learners use JOY liquid detergent and glycerin to make the largest bubble they can that lasts 15 seconds.

In this robotics activity, learners drive a remote-controlled car through a course to learn the challenges faced while trying to operate a planetary rover.

In this activity, learners use ABS pipe and an air leaf blower to make a strong shooting machine.

In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.