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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 environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.

As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

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