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PBS
Pbs: Mountain Maker, Earth Shaker: You Try It
What can a hard-boiled egg tell you about the Earth? Check this site out to learn. Be sure to click on "Plate Tectonics activity" for a graphic representation.
Other
Rockhounding Arkansas: Your Fault, My Fault, and the New Madrid Fault
Text and diagrams regarding tectonic forces, the new Madrid Fault, and earthquakes.
PBS
A Science Odyssey: You Try It: Plate Tectonics
Using your computer mouse you can simulate transforming, collisional, divergent and convergent plate boundaries. Descriptions of each plate boundary are also available.
Other
San Andreas fault.org: Tectonics
Provides a good overview of plate tectonics with embedded links to related information.
Other
Moorland School: Earth Science Zone: Plate Tectonics
A webpage explaining the main features of plate tectonics. Understand what evidence exists for plate tectonics and the theory of Pangea. Also learn about the different types of boundaries. The end of the webpage includes more links that...