Across
- 5. Crust that forms the ocean floor
- 8. Process of new crust forming at the ocean ridges and spreading outwards
- 10. Proposed the theory of continental drift.
- 11. Crust that forms the continents
- 12. Plates are moving apart from each other
Down
- 1. A deep trench in the ocean floor
- 2. Layer of semi-solid rock in the lower mantle
- 3. Example of where diverging plates occur
- 4. Patterns of magnetism trapped in rocks on each side of plate boundaries
- 6. Where the crust is sinking down into the earth
- 7. Another name for divergent plate boundaries
- 9. Proposed the theory of seafloor spreading