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If a sailboat is stranded because there is no wind, is it possible to set up a fan on deck and blow wind into the sail to make the boat move?

In this activity, learners construct their own small catapults using simple materials. Learners follow visual instructions to build their launching device.

This is an activity to do when there is a solar eclipse!

In this activity, learners build bridges and cantilevers in a series of "building out" challenges with straws and pins.

In this activity, learners repeat patterns in two and three dimensions to create tessellations.

In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

In this activity, learners conduct an oxidation experiment that turns old pennies bright and shiny. Learners soak 20 dull, dirty pennies in a bowl of salt and vinegar for five minutes.

This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

In this activity, learners create and experiment with wind tubes. These tubes are a playful and inventive way to explore the effect that moving air has on objects.

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