CK-12 Foundation
Ck 12: Life Science: 12.29 Renewable Resources
Learn how some renewable resources contribute to alternative energy sources.
NASA
Nasa: Climate Kids: Huge Machine Harnesses the Tides
Learn how an alternative energy source called tidal energy works, and find out where it is being harnessed.
TeachEngineering
Teach Engineering: Power to the People
Students read and evaluate descriptions of how people live "off the grid" using solar power and come to understand better the degree to which that lifestyle is or is not truly independent of technological, economic and cultural...
Other
Energy Resources: Hydro Electric Power
Alternative forms of energy site showcases Hydro-electric power. Discover how it works, it's advantages and disadvantages as well as whether or not it's considered to be a renewable resource.
Other
Union of Concerned Scientists: Science for a Healthy Planet and Safer World
The official website for Union of Concerned Scientists provides information on environmental issues and suggestions on actions people can take to curb environmental harm.
CK-12 Foundation
Ck 12: Earth Science: Wind Power Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about wind energy. Includes a few questions to check for understanding.