Across
- 2. Underwater mountain range formed by divergent boundaries.
- 4. Tectonic plate submerged by an ocean.
- 9. Theory that the continents are constantly moving.
- 11. When magma flows out of gaps in divergent boundaries, adding a new floor to the seafloor.
- 13. A long, narrow ditch caused by subduction at convergent boundaries.
- 14. When one plate is forced beneath another.
- 15. Where two plates move towards each other.
Down
- 1. Outer part of the Earth, consisting of the crust and upper mantle.
- 3. Where two plates slide laterally against each other.
- 5. Tectonic plate consisting mainly of the Earth's crust.
- 6. Scientist who proposed the theory of continental drift.
- 7. Theory that the Earth's lithosphere is broken into "plates" that move.
- 8. Where two plates move away from each other.
- 10. Supercontinent that existed before the continents drifted apart.
- 12. Opening in the sea floor where dark, heated, mineral-rich water flows.