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15.1 Vocab

QuestionAnswer
Inner Core A dense sphere of solid iron and nickel at the center of Earth.
Outer Core A layer of molten iron and nickel that surrounds the inner core of Earth.
Pangaea The name of the single landmass that broke apart 200 million years ago and gave rise to today’s continents.
Mantle The layer of hot, solid material between Earth’s crust and core.
Crust The layer of rock that forms Earth’s outer surface.
Lithosphere A rigid layer made up of the uppermost part of the mantle and the crust.
Asthenosphere The soft layer of the mantle on which the lithosphere floats.
Continental Crust the outer crust in the earth
Oceanic Crust the inner crust in the earth
Divergent Boundry A plate boundary where two plates move away from each other.
Convergent Boundry A plate boundary where two plates move toward each other.
Transformation Boundry A plate boundary where two plates move past each other in opposite directions.
Theory of Continental Drift a drift that has a continental theory about the earth
Created by: 1968660744
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