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This is written as a static display, but can easily be adapted to a hands-on experiment for learners to conduct.

In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

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

In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.