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Plate Tectonics

TermDefinition
Earthquake Shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
Plates Sections of the Earth's crust that move due to convection currents.
Convergent boudary Where two tectonic plates crash into one another
Seafloor Spread The process that creates new sea floor as plates move away from each other at the mid-ocean ridges
Convection a recurring current in the mantle that occurs when hotter, less dense material rises, cools, and then sinks again. This current is believed to be one of the driving forces behind tectonic plate movement.
Continental Drift the gradual movement of the continents across the earth's surface through geological time.
Epicenter Point on Earth's surface directly above an earthquake's focus
P-Wave A type of seismic wave that compresses and expands the ground. Faster than S-wave.
Crust earth's outermost layer of rock made up of both dry land and ocean floor
Mantle The layer of hot, solid material between Earth's crust and core.
Created by: vsimonetti
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