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In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

In this physics activity, learners construct a small-scale version of a classic carnival game.

In this activity, learners learn about friction by making their own miniature hovercraft.

The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air.

In this activity, learners construct cars that are powered by hand-made, electric propellers.

In this activity, learners use simple tools to build a bookshelf with a built-in bookend.

The goal of this activity is to design the fastest sailboat or one that carries the most treasure.