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PBS
Pbs Learning Media: Continental Drift: What's the Big Idea?
Students learn how the theory that explains the position of Earth's continents was established and later modified.
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.