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Science plate quiz

TermDefinition
Lithosphere The rigid outer layer of Earth Made of the crust + upper mantle Broken into pieces called tectonic plates
Convection Currents Movement of material caused by heat difference
Plate Boundaries Places where tectonic plates meet
Divergent Boundary Plates move away from each other Creates: Mid-ocean ridges New crust Example process: Sea-floor spreading
Convergent Boundary Plates move toward each other One plate may go under another (subduction) Creates: Volcanoes Mountains Deep ocean trenches
Transform Boundary Where two plates slide past each other
Subduction The sinking of a denser plate below a more buoyant plate
Mid-Ocean Ridge Mountain chain under the ocean at divergent boundaries
Rift Valley Deep valley on land at divergent boundaries
Sea Floor Spreading When rising magma adds new oceanic crust to the ocean floor
Created by: user-2016332
 

 



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