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Studies of our planet's crust, or lithosphere, suggest that it's not a single solid layer at all. This video illustrates the process of scientific inquiry by studying the evolution of our understanding of plate tectonics, the dynamics of those eve...
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Contents
Pangaea and Continental Drift (3:39) -- Magnetic Reversals (2:16) -- Mechanical Layers of the Earth (3:09) -- Earth's Changing Surface (3:08) -- Tectonic Plate Boundaries (2:40) -- Faults and Earthquakes (3:32) -- Strata and Shield Volcanoes (4:35)