Across
- 2. occurs at mid ocean ridges
- 8. moves the plates from inside the earth
- 10. towards each other
- 11. long chains of active volcanoes
- 12. violent shaking of the ground
- 13. we have seven major ones
- 14. a super continent in the past
Down
- 1. away from each other
- 3. cracks on earth's crust
- 4. a break in the earth's crust
- 5. narrow depressions on the seafloor.
- 6. ridgid outer part of the earth
- 7. slide past each other
- 9. denser than continental crust