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In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this math activity, challenge learners to make two equal rows from eight different paper strips. Learners can explore the many ways they can solve this problem.

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.