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

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

This simple activity uses paper and scissors to convey two key concepts to learners: the nanoscale is very small and working on the nanoscale requires special tools.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

Learners develop an understanding of air pressure in two different activities.