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In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.

This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.

This activity encourages visitors to build an electroscope—a simplified version of one of the tools scientists use to study the invisible forces on Earth and in space.

In this activity, learners gain knowledge about how carbon moves through all four of the Earth’s major spheres (biosphere, hydrosphere, atmosphere, and lithosphere), and understand how humans influenc

In this activity, learners participate in several full-body interactive games to model the process of self-assembly in nature and nanotechnology.

In this activity, participants will learn how stars form from the dust and gas that exists in space clumping together.

In "Chemistry Makes Scents," participants use their noses to distinguish between chemicals with very similar structures.