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Plate Task Cards
Plate Tectonics
Question | Answer |
---|---|
convergent | plate boundaries that collide |
divergent | plate boundaries that move apart |
transform | plate boundaries that slide across |
subduction | ocean rock sinking into the mantle at a trench |
trench | the downward bend in the oceanic crust where subduction occurs |
midoceanridge | longest mountain chain where sea floor spreading occurs |
seafloorspreading | the process of adding new material to the ocean floor |
platetectonics | a theory that the plates are in a constant motion due to convection currents in the mantle |
Wegener | the scientist that proposed the Theory of Continental Drift |
lithosphere | upper part of the mantle and the crust |
asthenosphere | a layer of partially melted rock beneath the lithosphere |