Sam6

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Across
  1. 3. middle of a plate
  2. 4. connects chambers to a vent
  3. 5. calm lava flows
  4. 7. eruption of heated water
  5. 10. stores magma
  6. 12. edge of Pacific plate
  7. 13. hot, gas, ash, cinders and bombs
  8. 15. opening
Down
  1. 1. springs water heated by magma
  2. 2. alternating lava
  3. 6. Earths heat
  4. 8. hole
  5. 9. when lava pours out
  6. 11. violent with cinders
  7. 14. caved in volcano