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In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth.

In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

In this activity, learners explore the structural strength of triangles by creating their own free-standing geodesic dome out of plastic straws.