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Like water drops in falling rain, a CD separates white light into all the colors that make it up.

In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

Learners create hard water by mixing Epsom salt and water. Then they compare what happens when soap solution is mixed with hard water and regular water.

This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.