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Vocab 6&7
Term | Definition |
---|---|
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 |