Across
- 3. Study of earthquakes
- 4. Earth's solid outer layer
- 5. Vibrations caused by earthquakes
- 10. Scientist who studies rocks
- 11. Layer beneath the crust
- 17. Type of volcano with steep slopes
- 18. Break in Earth's crust
- 19. Molten rock beneath Earth's surface
- 20. Earth’s innermost layer
Down
- 1. Point inside Earth where earthquake begins
- 2. Large landmass
- 6. Circular volcanic opening
- 7. Solid mineral material
- 8. Scientist who studies rocks
- 9. Type of fault where blocks move horizontally
- 12. Earth's outer shell
- 13. Study of Earth's physical structure
- 14. Sudden shaking of the ground
- 15. Scale for measuring earthquakes
- 16. Hot molten rock