Across
- 4. A deep crack in the Earth's crust where plates move
- 5. A sudden shaking of the Earth's surface
- 7. A chain of mountains formed under the ocean
- 8. The layer of the Earth that is broken into tectonic plates
- 11. The movement of hot material in the mantle that causes plates to move
Down
- 1. A boundary where two plates move apart
- 2. A boundary where two plates move toward each other
- 3. Molten rock beneath the Earth's surface
- 6. The outermost solid layer of the Earth
- 9. A boundary where two plates slide past each other
- 10. The name of the single landmass that existed millions of years ago
- 12. The point on the Earth's surface above an earthquake