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

In this activity, learners design a scientific exploration mission to a planet or moon of their choice.

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

This activity (on pages 19-24) introduces learners to the rain forest's layers—emergent, canopy, understory, and forest floor—and has learners make paper lianas (vines that live attached to trees) and

Learners follow directions to construct a water-powered electrical generator using a turbine made from plastic spoons.

In this activity, learners will use cereal to conduct an experiment and investigate how decreased bone density is related to increased risk of bone fracture.

This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.