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plate tectonics-max

geology 12 plate tectonics

QuestionAnswer
pangaea super continent that existed 200 million years ago
Atlantic Ocean ocean created when Pangaea broke apart
Alfred Wegener scientist who thought that the continents were once one super continent
sea-floor spreading theory that new ocean crust is formed at the mid ocean ridges by molten lava
lithosphere crust and upper mantle
mantle largest layer in the earth
crust outermost layer of the earth
inner core composed of dense iron and nickel
outer core liquid core composed of iron and nickel
athenosphere plastic layer before lithosphere
plates large sections of earths crust, upper mantle and lithosphere
plate tectonics theory that earths plates are broken into sections
continental drift theory that continents move
divergent boundary boundary between two plates that are moving apart
convergent boundary boundary where two plates are moving towards each other
transform fault boundary boundary where two plates are moving past each other
convection current cycle of heating, rising, cooling and sinking
subduction zone area where denser a converging plate descends or sinks under a less dense converging plate
Created by: maximus
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