VolcaNOSE & Lava Boogies

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Across
  1. 3. volcano primarily made of erupted volcanic ash & rock fragments
  2. 4. Measures strength of an eruption
  3. 9. Hole in the earth's surface.
  4. 10. Underground channel created when surface lava hardens before lava underneath.
  5. 12. Leader of the knucklehead 7th graders
  6. 13. rough and jagged hardened lava
  7. 14. solid ejecta between 2-64 mm
  8. 15. mass of underground volcanic rock
  9. 16. Underground source of a volcanic eruption
Down
  1. 1. Channel in volcano that release eruption material
  2. 2. Molten rock pushes up overlying rock layers
  3. 5. volcano that probably won't erupt again
  4. 6. created from molten rock erupting from a hole in the crust
  5. 7. Created from a collapsed magma chamber
  6. 8. large ejecta harden before being thrown.
  7. 11. ejecta thrown high in the air and then solidifies