Across
- 6. formation of new oceanic crust due to the up welling of magma at mid-ocean ridges
- 9. two plates moving apart
- 10. an explanation of a set of related observations or events based upon proven hypotheses and verified multiple times by groups of detached researchers; can be used to explain and predict natural phenomena
- 12. process where one plate slides under another
- 13. two plates coming together
- 15. study of the movement of large masses of rock, known as plates, on the Earth’s surface; includes folds, faults, and plate movement
Down
- 1. a region where two lithosphere plates meet
- 2. undersea mountain range formed where two parts of the Earth’s crust are moving apart
- 3. thinner part of Earth’s crust that lies underneath the ocean basins
- 4. thicker part of Earth’s crust that forms the large land masses
- 5. theory that describes plate movement and how it affects Earth’s geologic features
- 7. distinct sections of the lithosphere which make up the outermost layer of the Earth
- 8. two plates sliding past each other in opposite directions
- 11. large bowl shaped depression that holds ocean water; regions of crust below sea level
- 14. a change to the structure of the Earth by tectonic activities