Across
- 3. large piece of Earth crust
- 6. fast mudflow from volcano
- 7. black glassy rock
- 10. rock pieces from eruption
- 12. erupting or may erupt
- 14. when a volcano explodes
- 17. force pushing inside volcano
- 19. chamber place magma is stored
- 20. hole where lava comes out
- 21. one plate goes under another
- 22. hot layer under crust
- 23. mountain shape of volcano
Down
- 1. large hole after collapse
- 2. melted rock under ground
- 4. hot ash and rock flow
- 5. dark volcanic rock
- 8. trapped air inside magma
- 9. bowl at volcano top
- 10. related to moving plates
- 11. sleeping but may erupt
- 13. hot melted rock on surface
- 15. fine gray dust from eruption
- 16. long crack in ground
- 17. light rock with holes
- 18. will not erupt again