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In this activity learners will build roller coasters and test them using small balls or marbles.

In this activity, learners are challenged to build a bird feeder using recycled materials from home and are encouraged to problem solve during the extensions.

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.

Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.