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In this activity, learners get a closer look at the shape of a drop of water and a drop of oil. Learners first drip water onto wax paper and examine the shape of separate drops from a side view.

In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

In this simulation, learners explore how ocean currents spread all kinds of pollution—including oil spills, sewage, pesticides and factory waste—far beyond where the pollution originates.

No glue is needed for learners of any age to become marshmallow architects or engineers.

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