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In this activity, learners shrink the scale of the vast solar system to the size of their neighborhood.

In this activity, learners plan and create a 24-foot long, two-dimensional model of our solar system, and compare and contrast the differences between planets and the sun.

In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

In this activity, learners help create and then navigate an outdoor course of the traditional "planets" (including dwarf planet Pluto), which are represented by small common objects.

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

In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

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

In this space science activity, learners work together to create a human-powered orrery to model the movements of the four inner planets.

In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

Learners take on the role of environmental engineers as they design water filters.

In this activity, learners make a model of a beehive using simple materials.

In this activity, learners model the gravitational fields of planets on a flexible surface.

In this experiment, learners design and build a model room in a shoebox and furnish it with tiny furniture.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.