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In this mechanical engineering activity, learners design shadow puppets with moving parts and use them to tell stories.

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

In this engineering activity, learners design their own board games.

In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan.

This activity (on page 2 of the PDF under GEMS Activity) is a full inquiry investigation into technology design and testing.