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Vocab 6&7

TermDefinition
Lesson 6
earthquakes Ground movementthat occur when block of rock in earth move suddenly,and release.
focus A place within earth along a at which the first motion of earthquake occurs.
epicenter Directly above the focus on earths surface
tectonic plate boundry Where two or more tectonic plates meet
fault a break in earths crust along which block of rock move
deformation The process by which rock becomes and changes shape due to stress
elastic forbound The return of rock to its original shape after elastic deformation
Lesson 7
volcano only place where gas,ash,or melted rock comes out of the ground
magma The less dense than the solid rock,so it rises toward the surface.
lava magma that has reached earths surface
vent openng of a volcano
tectonic plates Giant sections of lithosphere on eraths surface
hot spot a location where a column of extremely hot mantle rock rises through the asthenspere
Created by: tp02145
Popular Earth Science sets

 



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