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Plate Tectonics
| Question | Answer |
|---|---|
| Asthenosphere | The soft layer of the mantle on which the lithosphere floats |
| Convergent | Moving toward |
| Divergent | Going in different directions |
| Epicenter | Point on Earth's surface directly above an earthquake's focus |
| Focus | Point at the depth where the rocks ruptured to produce earthquakes; place where quake waves originate |
| P-Wave | A type of seismic wave that compresses and expands the ground. |
| S-wave | A type of seismic wave that moves the ground up and down or side to side |
| Tectonics | The branch of geology dealing with the rocks that make up Earth's crust |
| Tsunami | A giant wave usually caused by an earthquake beneath the ocean floor. |
| Crust | Earth's outermost layer. |
| Trench | form when one tectonic plate slides beneath another plate at a subduction zone. Deepest part of the ocean floor. |
| Mid Ocean Ridge | An undersea mountain chain where new ocean floor is produced; a divergent plate boundary. |
| Lithosphere | A rigid layer made up of the uppermost part of the mantle and the crust. |
| Subduction | One plate going under another plate |
| Continental | the relatively thick part of the earth's crust that forms the large landmasses. Crust that is granitic and less dense. |
| Oceanic | the relatively thin part of the earth's crust that underlies the ocean basins. Crust that is basaltic and more dense. |
Created by:
echmielowiec
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