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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 math lesson, learners identify the likelihood of an event by using a walk-on probability scale.

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

In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

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 make a model of a beehive using simple materials.

Learners use red cabbage juice and pH indicator paper to test the acidity and basicity of household materials. The activity links this concept of acids and bases to acid rain and other pollutants.

In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice.

In this activity, learners find Xi'an, the archaeological area in China where the Terra Cotta Army was discovered, on a map or globe and look more closely at the relationship of the warrior site to ot

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