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Algae in Excess
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Plants need nutrients to grow. This is why we apply fertilizers to grass and food crops. In this activity, learners will explore how fertilizers can affect lakes and other bodies of water.

Starting Your Container Garden
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This guide outlines how to plant a garden even if you don't have a yard!

Liesegang Rings
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This display shows slow chemical reactions in colorful crystal formations known as Liesegang Rings. These reactions are similar to those forming the rings in agates.