Energy in a Roller Coaster Ride

See potential energy convert to kinetic energy in this interactive activity from WGBH that shows a roller coaster in action.

Geothermal Power

This video segment from Vegas PBS shows the important role geothermal energy systems can play in making a more energy-efficient and greener building.

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Global Warming: Carbon Dioxide and the Greenhouse Effect

This video segment adapted from NOVA/FRONTLINE demonstrates the physical property of carbon dioxide that causes the greenhouse effect.

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Heat Transfer

In this interactive activity adapted from the Wisconsin Online Resource Center, learn how heat can be transferred in one of three ways: conduction, convection, and radiation.

Solar Power

This video segment from Vegas PBS shows the largest solar power system to date in the U.S. and explains how solar power can serve the needs of large-scale facilities and benefit the environment.

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What Is a Laser?

Learn how lasers are different from natural light in this interactive activity adapted from NASA.