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This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.

This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.

This fun hands-on astronomy activity lets learners explore models of the Milky Way and other galaxies to get a sense of relative distances to other galaxies.

In this activity, learners investigate the basic crystal structures that metal atoms form.

Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.

This paper describes a working-model demonstration of Ernest Rutherford's 1911 experiment about the nature of atoms.

In this activity (pages 32-41), learners learn how the atomic and molecular arrangement of matter are related to physical properties.

This is a classic exercise for visualizing the scale of the Solar System.

In this activity (pages 42-49), learners discover the methods and challenges of building nanoscale structures with macroscale equipment.