Volcano

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Across
  1. 2. a volcano that collapsed in on itself
  2. 6. another name for underground lava
  3. 7. a type of plate boundary that is located at the Mid-Atlantic ridge
  4. 8. part of the cone eroded away, leaving the solid igneous core
  5. 10. magma that hardened in a crack parallel to the rock layers
  6. 11. an opening in the Earth's surface through which magma flows out.
  7. 13. a type of volcano made of alternating layers of lava and tephra
  8. 15. Partially melted hot rocks which are being forced towards the crust.
  9. 17. crack the cuts vertically from the rock layers
  10. 18. above ground magma
  11. 19. a steep walled depression around a volcano's vent.
Down
  1. 1. a type of volcano with broad, gently sloping sides.
  2. 2. type of volcano that is steep-sided and loosely packed
  3. 3. the cave under a volcano where the magma is sitting
  4. 4. the largest intrusive igneous rock bodies
  5. 5. rocks that form when magma cools underground
  6. 9. a type of plate boundary where two plates collide
  7. 12. an opening in the Earth that erupts gases, ash, and lava.
  8. 14. two factors of an eruption are water vapor and ______
  9. 16. bits of rock or solidified lava dropped from the air