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In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.

In this activity, learners are challenged to design and construct a jointed figure that moves in a motion (something like jumping jacks) when a string is pulled.

In this invention challenge activity, learners create an indoor game for one or two people that gets you moving.

In this activity, learners build a figure that moves and "comes to life" when they pull its string.

In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.

In this inquiry-based activity, learners investigate the basic forces of flight as they construct their own paper glider that represents a rainforest creature from Borneo (large, tropical island in So

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.

Learners use engineering design principles to construct and test a fully solar-powered car. Solar car kits usually include a photovoltaic cell and motor; some include a chassis as well.