Across
- 7. generates earthquakes
- 10. a rock that is normally light colored
- 12. when the oceanic crust bends down
- 15. mountains under water
- 17. any trace of anything ancient
- 18. supercontinent
- 19. force pressing on something
Down
- 1. separating of the plates
- 2. a dark fined grained rock
- 3. core a part of the earths inner
- 4. valley a deep valley
- 5. wegeners idea that the continents move is called
- 6. breaks in earths crust
- 8. when somthing goes back into the mantle
- 9. core the last layer in our earth
- 11. tectonics the earth's motion into a single theory
- 13. colliding of the plates
- 14. a device that shows us down far below the ocean
- 16. outer skin of the earth