Across
- 2. Where earthquakes are created.
- 3. The large rocky plates underneath the surface of earth.
- 6. Where two plates slip by each other.
- 9. evidence in the changing climates in the past.
- 10. What is the cause of so many earthquakes in California.
- 12. The tectonic plates, earths crust and uppermost mantle are referred to this.
- 15. The place where two plates move apart.
- 17. The man who came up with the continental drift theory.
- 19. What is surrounding the inner core.
- 21. The theory that all the continents were once joined together in a single landmass and then drifted apart.
Down
- 1. The name of the super continent before it drifted apart.
- 4. The Earths thin outer layer.
- 5. What is the big fault line in California.
- 7. The place where two plates come together.
- 8. Where one plate gets pushed under another. Also where volcanoes form.
- 11. What causes sea floor spreading.
- 13. The thickest part of Earth and surrounds the mantle.
- 14. a fracture between two blocks of rocks.
- 16. Evidence in the layers of rocks across continents.
- 18. Where there is a sudden slip on a fault causes what.
- 20. what is the thinnest layer of the earth.