CK-12 Foundation
Ck 12: Earth Science: Geothermal Power
[Free Registration/Login may be required to access all resource tools.] How geothermal energy can be harnessed.
TeachEngineering
Teach Engineering: Energy Resources and Systems
Several activities are included to teach and research the differences between renewable and non-renewable resources and various energy resources. Students work with a quantitative, but simple model of energy resources to show how rapidly...
Other
Lehigh University: Energy
An inquiry-based science unit for middle school students centered on the world's energy sources. The lessons integrate technology and lab activities while teaching about energy sources, production, and consumption.
CK-12 Foundation
Ck 12: Earth Science: Renewable Energy Resources
[Free Registration/Login may be required to access all resource tools.] What renewable energy resources are and examples of renewable energy resources.