Across
- 3. fine particles of rock dust blown from an explosion vent cloud
- 4. consisting of separate interconnected parts
- 8. a branch of geology that studies volcanoes
- 10. in a state of temporary inactivity
- 13. a Super volcano located in Wyoming
- 16. a long narrow depression in a surface
- 17. a involuntary vibration
- 19. rock that in its molten form erupts from volcanoes
Down
- 1. science of histroy of the earth
- 2. the center of the earth
- 3. ash that has fallen from an eruption cloud
- 5. process by which a volcano erupts hot liquid and gaseous material into the air
- 6. a passage followed by magma in a volcano
- 7. a opening in the earths crust
- 9. the remains of something that has been destroyed
- 11. reduced to liquid form by heating
- 12. an opening at the earth's surface of a vocanic conduit
- 14. start suddenly
- 15. a bowl-shaped geological formation at the summit of a volcanoes
- 18. molten rock in the earth's surface