Volcanoes

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Across
  1. 5. A twisted or ropey texture
  2. 7. Walnut sized material
  3. 9. fine, glassy fragments
  4. 11. occurring along divergent plate boundaries on the ocean floor
  5. 14. The resistance to flow
  6. 15. steep-walled depression at the summit, generally less tan 1 kilometer in diameter
Down
  1. 1. Mudflow from interactions with debris and water
  2. 2. opening connected to the magma chamber via a pipe
  3. 3. hardened or cooled lava
  4. 4. Amount of dissolved gases present in magma
  5. 6. a summit depression typically greater than 1 kilometer in diameter, produced by a collapse following a massive eruption
  6. 8. porous rock from ”frothy” lava
  7. 10. Ejected as hot lava
  8. 12. rough, jagged blocky texture
  9. 13. pea-sized material