Across
- 3. old man made item
- 6. beginning of seafloor spreading
- 9. 300 million years ago this supercontinent existed
- 10. land slides together
- 12. land converges
- 13. what continents rest on
- 16. causes movement of our plates
- 17. uses sound waves to measure distance
- 18. mass/volume
- 20. diverging on land
Down
- 1. where subduction occurs
- 2. geologists theory of...
- 4. crust falling into the mantle
- 5. what our plates sit on
- 7. Earth’s largest layer
- 8. conveyor belt
- 11. divides land
- 14. famous scientist who discovered Pangaea
- 15. continents moving slowly over Earth’s surface
- 19. San Andreas …