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Levi's Science Vocab

crust the thin and solid outermost layer of the earth above the mantle
mantle the layer of rock between the earth's crust and core
core the central part of the earth below the mantle
lithosphere the solid outer layer of the earth that consists of the crust and the right upper part of the mantle
asthenosphere the soft layer of the mantle on which the tectonic plates move
mesosphere the strong lower part of the mantle between the asthenosphere and the outer core
tectonic plate a block of lithosphere that consists of the crust and the rigid outermost part of the mantle
continental drift the hypothesis that states the continents once formed a single land mass, broke up, and drifted to their present location
seafloor spreading the process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies
plate tectonics the theory that explains how large pieces of earth's outermost layer, called tectonic plates, move and change shape
Created by: llindley