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In this engineering activity, learners design and build a mechanical arm to lift a small item.

In this engineering activity, learners explore simple machines and then build cardboard automata using cams.

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 design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.