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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

This activity offers learners and their families several ways to raise their awareness together about home water.

In this activity, learners conduct a simple experiment to see how electrically charged things like plastic attract electrically neutral things like water.

In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.

Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.