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Plate Tectonics Voca

Vocab Words for Plate Tectonics Unit

TermDefinition
Mid Ocean Ridges undersea mountain chain where new ocean floor is produced
Sea Floor Spreading The process by which molten material adds new oceanic crust to the ocean floor
Deep Ocean Trench A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle
Subduction The process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at a convergent plate boundary
Divergent Boundary A plate boundary where 2 plates move away from each other
Convergent Boundary A plate boundary where 2 plates move toward each other
Transform Boundary A plate boundary where 2 plates move past each other in opposite directions
Plate Tectonics The theory that pieces of Earth's lithosphere are in constant motion, driven by currents in the mantle
Created by: mrsfarrellhhms
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