Across
- 4. the outer part of the core
- 5. the innermost layer of the earth
- 8. the inner part of the core
- 9. first mechanical layer of the earth
- 12. squeezing together
- 13. top layer of the earth
- 15. created the idea of continental drift
- 17. the super-continent that was made up of the continents we know today
- 18. 2nd layer of the earth
- 20. two plates come together
Down
- 1. tectonic plates split apart on the seafloor
- 2. the creator of the theory seafloor spreading
- 3. plates move away from each other
- 6. the slow moving away of the continents
- 7. the plates that make up the crust of the earth
- 10. plates slide past each other
- 11. 3rd mechanical layer of the earth
- 14. Earth's tectonic plates dive back into the mantle
- 16. fracture in the earth's crust
- 19. second mechanical layer of the earth