Across
- 5. The weakest of the Earth's plates.
- 6. Boundary where plates pull apart.
- 10. These are formed in the ocean when two ocean plates come together.
- 11. These are most common around transform faults.
- 14. Area of solid and dense material, high concentration of iron.
- 18. The mega continent when all of Earth's land was connected.
- 19. Boundary where plates come together.
- 20. The strongest of the Earth's plates.
- 21. These are formed on land near subduction zones.
Down
- 1. Area of solid iron and nickel.
- 2. Large, flat region of an ocean basin.
- 3. The gentle slope from an ocean basin, made of sediment.
- 4. These are formed underwater where plates pull apart.
- 7. Boundary where plates slide next to each other.
- 8. The steep drop from a continent to an ocean basin.
- 9. The theory that the Earth surface is comprised of moving masses riding on top of molten rock.
- 12. These are formed where continental plates pull apart.
- 13. Massive mountain range formed by a continental plate collision.
- 15. These are formed off the coast of subduction zones.
- 16. Area of liquid iron and nickel.
- 17. Area of molten rock under the Earth's surface.