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

In this activity (on pages 16-21), learners get a sense of geological time by understanding how big a million is.

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 math-based activity, learners model the intensity of light at various distances from a light source, and understand how astronomers measure the amount of sunlight that hits our planet and othe

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.