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

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

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

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