Across
- 2. The uppermost layer in the Earth.
- 3. Breaks in Earth's crust where rocks have slipped past each other.
- 6. Two plates that slide past each other.
- 9. A process where mid-ocean ridges add new material to the ocean floor.
- 11. A theory that said the continents move.
- 12. A German Scientist that had the theory of Continental Drift
- 15. A device that uses sound waves to explore places far away.
- 16. Evidence Evidence used to support the theory of Continental Drift
- 17. A process where oceanic crust is pulled back into the mantle.
- 18. A opening where oceanic crust sinks back into the mantle.
- 19. A ridge in the ocean that releases molten rock from the mantle.
- 20. A land form that forms when two convergent boundaries hit each other.
Down
- 1. A famous volcano responsible for Pompeii.
- 4. A super continent formed 240 million years ago.
- 5. Two plates that move towards each other.
- 7. A layer in the Earth that has molten rock.
- 8. Two plates that move away from each other.
- 10. The crust in the ocean
- 13. A deep valley caused by diverging plates.
- 14. Cracks in the Earth that move caused by convection currents.