Across
- 3. hot fluid or semi-fluid material below or within the earth's crust
- 6. Vertical fractures where the blocks have mostly moved horizontally
- 7. Earth's tectonic plates move apart, or rift
- 9. remains or traces of organisms that were once alive
- 12. Sea-floor spreading were combined into the new more recent theory of ___________.
- 14. What caused the San Andreas fault
- 15. A giant landmass that existed 200 million years ago
- 18. The shaking of the Earth due to a sudden release of energy
- 19. The cycle that powers the ocean currents, weather, and tectonic plates
- 20. area on Earth where two or more lithospheric plates collide
Down
- 1. A boundary between two plates that are moving apart
- 2. plate oceanic tectonic plate that lies beneath the Pacific Ocean
- 4. major tectonic plate straddling the Equator as well as the prime meridian
- 5. tectonics
- 8. Known for creating the continental drift theory
- 10. Process by which new ocean lithosphere forms
- 11. geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries
- 13. fracture or zone of fractures between two blocks of rock
- 16. the deepest parts of the ocean floor
- 17. a geological process in which the oceanic lithosphere is recycled into the Earth's mantle