Across
- 3. opening that allows air or gas out
- 6. a type of mountain that erupts
- 7. Temporarily inactive
- 8. gigantic piece of earth's crust
- 10. farthest from sun
- 12. powdery residue left after burning something
- 15. an act or instance of erupting
Down
- 1. most solid bulk of earth's interior
- 2. erupts and sends water/ steam into air\
- 4. channel for conveying water
- 5. a hot liquid base
- 9. The center part
- 11. Hot molten or semi fluid rock
- 13. hard outer layer
- 14. of Fire- Hot ring