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

In this activity, learners construct cars that are powered by hand-made, electric propellers.

In this activity, learners use simple tools to build a bookshelf with a built-in bookend.

In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

In this activity (page 12), learners apply the concepts of pixilation and pointillism to the world of biomedical science.