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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 activity, learners explore how environmental engineers might approach solving the problem of an oil spill.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms.