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In this activity, learners make models representing bones on Earth and bones that have been in space. They discover what happens to bones without proper exercise and nutrition.

In this activity, learners construct a paper glider to experiment with aerodynamic forces.

In this activity, learners model hot spot island formation, orientation and progression with condiments.

In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth.

In this activity, learners will explore what a constellation is and make their own.

In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

In this activity, learners construct paper airplanes that twist and turn.

In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

In this activity, learners make a 3-D model of magnetic fields by inserting a small, strong magnet into a sphere.