Across
- 3. A type of seismic wave
- 4. Molten rock found beneath the Earth's surface
- 6. The process of mountains forming
- 8. The layer between the crust and core
- 9. A boundary where plates collide
- 10. The outermost solid shell of Earth
Down
- 1. A supercontinent that existed millions of years ago
- 2. The study of earthquakes
- 5. A break in the Earth's crust
- 7. Earth's solid, innermost laye