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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.

Learners conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.

Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

Learners build devices from rubber bands to test for invisible air pollutants.