PBS
Pbs Learning Media: Off the Grid
This interactive activity produced for Teachers' Domain presents users with three hypothetical scenarios in which they are challenged to design a wind power system that will meet their electrical needs.
BBC
Bbc: Bitesize Geography: Os Map Skills
A short tutorial on mapping tools and how to read maps. Covers features of maps, symbols, the compass, scale, distance, how height is represented, and grid references. Includes multiple-choice quiz at the end.
George Mason University
Chnm: Critical Infrastructure Protection Oral History Project
Project documents the history of the nation's efforts to protect what has come to be called critical infrastructure--the systems and structures that are vital to the smooth and safe functioning of our economy, society, and way of life.
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