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Plate Tectonics

Continental Drift the hypothesis that the continents slowly move across Earth's surface
Crustal Plate a rigid layer of Earth's crust that is believed to drift slowly
Earthquake the shaking that results from the movement of rock beneath Earth's surface
Ocean Basin a great depression occupied by the ocean on the surface of the lithosphere
Pangaea the name of the single landmass that broke apart 200 million years ago and gave rise to today's continent
Plate Tectonics the theory that pieces of earth's lithosphere are in constant motion, driven by convection currents in the mantle
Primary Waves a type of seismic wave that compresses and expands the ground
Second Waves a type of seismic wave that moves the ground up and down or side to side
Surface Waves a type of seismic wave that forms when a primary wave and secondary wave reach Earth's surface
Volcano a weak spot in the crust where magma has come to the surface
Convergent: continental to continental Forms: Mountains Ex. Himalayans
Convergent: ocean to ocean Old plate sinks
Created by: Miss_B