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Unit 2 lesson 6/7
| Term | Definition |
|---|---|
| Earthquake | are ground movements that occur when blocks of rocks in the earth suddenly move and release energy |
| Focus | is a place within earth along a fault at which the first motion of an earthquake occurs |
| Epicenter | is directly above earth's surface |
| Tectonic Plate Boundary | is where two or more tectonic plates meet |
| Elastic Rebound | the return of rock to it's original form of shape after elastic deformation |
| Volcano | is any place where gas,ash or melted rock come out of the ground |
| Magma | melted rock |
| Lava | is magma that has reached earth's surface |
| Vent | opening of a volcano |
| Hot Spot | is a location where a column of extremely hot mantle rock rises through the asthenosphere called (mantle plume). |
| Deformation | is the process by which rock becomes deformed and changed shape due to stress |