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Geology Kitchen #9 - Plate Tectonics

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Published on Dec 3, 2012

This episode discusses the scientific theory of plate tectonics, in which the Earth's crust is subdivided into a series of large and small tectonic plates. Convergent, divergent or transform boundaries are discussed and demonstrated with brittle graham crackers and icing to illustrate the motions of the plates at these boundaries.  A second demonstration consisting of heating cream in a pan, representing convecting upper mantle, driving a relatively brittle layer of cocoa powder (the Crust).

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