Fuels made from plants such as corn and sugarcane are powering millions of cars on the road today. Biofuels shows how plant-based fuels, such as ethanol and biodiesel, are beginning to…

Vast amounts of heat exist below the planet's surface. Geothermal Energy shows how scientists are tapping into this source of energy to heat homes and generate electricity. Easy-to-read text,

The movement of a rushing river is a valuable energy source. Hydroelectric Energy shows how engineers build and operate dams, turbines, and generators to turn this movement into electricity.…

Fossil-fuel cars emit poisonous gases, but the only thing that comes from the tailpipe of a car powered by a hydrogen fuel cell is water. Hydrogen Fuel Cells shows how these fuel cells work,…

A piece of nuclear fuel the size of your fingertip holds as much energy as 150 gallons (568 L) of oil. In Nuclear Energy, learn how scientists developed this amazing source of energy, how it…

Throughout the world's oceans, the tides are always in motion. In Ocean Energy, learn how scientists harness this motion to generate clean electricity, discover where ocean energy is being…

The sun shines down on Earth every hour of every day. In Solar Energy, learn how scientists are turning sunshine into electricity, discover the history of solar technology, and explore how…

Across the country, huge open spaces are covered in gently turning wind turbines. In Wind Energy, explore how these machines generate electricity, learn about the history of wind power, and…