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In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.

In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.