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Unit 2 Lesson 6,7

Earthquakes are ground movements that occur when blocks of rock in earth move suddenly and release energy
Focus A place within earth along a fault at which the first motion of an earthquake occurs
Epicenter Directly above the focus on earth's surface
Tectonic Plate Boundary Where two or more tectonic plates meet
Fault A break in earth's along which blocks of rock move
Deformation Is the process by which rock becomes deformed and changes shape due to stress
Elastic Rebound The return of rock to it's original shape after elastic deformation
Volcano Is any place where gas, ash, or melted rock come out of the ground
Magma Melted rock is less dense than solid rock, so it rises toward the surface
Lava Is Magma that has reached earth's surface
Vent An opening at the surface of the earth through which volcanic material passes
Tectonic Plates Are giant sections of lithosphere on earth's surface
Hot spot A location where a column of extremely hot mantle rock, called a mantle plume, rises through the asthenosphere
Created by: Makayla889