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

In this two-part activity, learners work in pairs to examine the four basic stages of a turbine engine.

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.

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