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This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.

In this fun hands-on activity learners explore a simple machine: the lever. What happens to a load when you multiply the length of a lever? Find out here!

Build a car that runs on air. Using household materials, experiment with the power of air to create thrust powerful enough to move a homemade car.