Across
- 2. Large and deep hole in Earth's crust
- 6. edges where two plates meet
- 7. mountains where magma comes up out of
- 9. area on Earth over a mantle plume
- 11. molten rock
- 12. Plates rub against each other
Down
- 1. Plates move away from each other
- 3. where old crust is destroyed
- 4. Two plates collide
- 5. currents that move Earth's surface
- 8. The shaking of earth
- 10. Theory of how continents drift