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

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

In this activity, learners add food coloring to hot and cold water in order to see how fluids at different temperatures move around in convection currents.

Some bugs can walk on the surface of a lake, stream, river, pond or ocean.

Millions of organisms can live in and around a body of water.

In this outdoor activity/field trip, learners investigate organisms that live along the ocean's rocky coast.