This lesson provides an overview of destructive earthquakes and their connection to tectonic movements of the Earth's crust. It includes a discussion of some especially destructive historic earthquakes, and a brief...
This is the second page of a three part brief review of the history of the Earth. It covers the time from the end of the Devonian Period to the close of the Mesozoic Era. The site describes this time interval in terms...
This is a brief overview of the Theory of Plate Tectonics. According to the theory, the Earth's surface layer, or lithosphere, consists of seven large and 18 smaller plates that move and interact in various ways. Along...
This lesson covers the interior of the Earth, geological differentiation, plate tectonics, composition and layers of the atmosphere, weather and climate, consequences of rotation for weather, the magnetic field,...
This is a brief review of the Theory of Continental Drift and the evidence that led Alfred Wegener to state the theory. It describes evidence of matching but misplaced rocks, uncovered fossils in places they should not...
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