Across
- 1. A trace of an ancient organism that has been preserved in rock
- 6. formation on the ocean floor that creates land
- 11. Process that occurs in the mantle, in it the magma rotates like a conveyor belt
- 12. Earths second layer, it’s part of the lithosphere
- 13. type of boundary that involves two plates Colliding together
- 14. pieces separated by cracks on Earths crust
- 17. Theory that plates are moved by convection current in the mantle
- 20. Weak spot in the crust where magma has come to surface
Down
- 2. process where land sinks down into the mantle
- 3. Supercontinent that existed millions of years ago
- 4. formation on the ocean floor that creates faults
- 5. type of boundary that involves two plates spreading apart from eachother
- 7. Earths middle and bottom layer
- 8. first theorized plate tectonics
- 9. Theory that continents slowly drift across Earths surface
- 10. type of boundary that involves two plates rubbing together
- 15. Earths top layer
- 16. Areas where Earths crust diverges on land
- 18. Breaks in Earths crust where rocks have slipped past each other
- 19. device used to see what the bottom of the ocean looks like