Across
- 6. About to erupt
- 7. Type of rock
- 9. A fast movement
- 11. Concentrating
- 12. Stop drop and hold
- 13. Semi molten rock
- 14. A large bowl shape
- 15. The outer layer of the earth
- 16. Point in the earth surface
- 20. These cause earth quakes
Down
- 1. People who study earth quakes
- 2. Type of rock
- 3. Hot molten
- 4. Used to measure earth quakes
- 5. Resistance
- 8. Type of rock
- 10. Strength
- 17. No longer going to erupt
- 18. Inactive
- 19. Moving under or on top of each other