Across
- 2. Wegener, proposed theory of continental drift
- 3. segments of the lithosphere that move and change place
- 6. dry land parts of the crust
- 8. produces volcanoes
- 10. rigid layer of the uppermost mantle and crust
- 12. fault, grind past each other with no damage to lithosphere
- 16. sea floor of the crust
- 18. move together/ collide
- 19. the outer core of the mantle is
Down
- 1. move apart
- 3. name of landmass that was present 200 million years ago
- 4. earths largest plate
- 5. weaker region in the mantle over which earths outer shell lies
- 7. outer layer of the earth
- 9. where the sea floor is created
- 11. core, earths 4th layer
- 13. core, earths 3rd layer
- 14. layer below the crust
- 15. plates are driven by what of the earth
- 17. drift, theory that continents were once a single landmass that broke apart and have moved to their present locations