Across
- 2. the part we live on
- 4. fracture between the earth's crust
- 6. when the plate goes in the mantul
- 9. when two tectonic plats move past one another
- 10. the region of the earth atmosphere
- 11. the formation of new sea floor crust
- 13. the rigid outer part of the earth
- 17. the center of the earth
- 18. boundaries sea floor spreading ocean get farther appart
- 19. the most solid bulk of the earth interior
- 20. plates of the earth crust
Down
- 1. developed by Hess
- 3. substance consisting of two or more substances mixed
- 5. the inner most of the earth
- 7. is the act of compressing
- 8. the gradual movement of the continets
- 12. properties that involve a reaction
- 14. when two plate come together
- 15. portion of the earth mantle that flows like molten plastic
- 16. the outside of the inner core