Across
- 2. two plates slide past each other
- 4. a mountain range running along the middle of an ocean
- 6. a large body of sea
- 9. the deepest part of the ocean
Down
- 1. molten rock above the surface of the Earth
- 3. molten rock below the surface of the Earth
- 5. two plates moving away from each other
- 7. the outer layer of earth
- 8. a person who studies the Earth and its features
- 10. the third planet in the solar system