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Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle.

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.

In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.

In this outdoor, night-time activity, learners discover how to spot eye-shine (reflection of light from an animal's eyes) by using a flashlight to play a simulation game.

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

In this outdoor activity/game, learners use thermometers to simulate how lizards survive in habitats with extreme temperatures.