OREGON STATE UNIVERSITY

Vulcan's Vocabulary Worksheet

Using complete sentences, define the following volcanic terms:

1. Andesite:


2. Ash:


3. Ashcloud:


4. Ashfall:


5. Ashflow:


6. Avalanche:


7. Basalt:


8. Composite Volcano:


9. Crater:


10. Dacite:


11. Debris Avalanche:


12. Dome:


13. Lahar:


14. Lava:


15. Lavaflow:


16. Magna:


17. Mudflow:


18. Phreatic eruption:


19. Pumice:


20. Pyroclastic:


21. Pyroclastic Flow:


22. Tephra: