Plate Tectonic Crossword Puzzle

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Across
  1. 2. Crust under the ocean
  2. 4. Dense plate slides under the less dense plate
  3. 7. Boundary where plates move together
  4. 8. Responsible for most of Hawaiian volcanic activity
  5. 10. Collisional mountain ranges made when the mountain is _?
  6. 14. Another word for composite volcanos
  7. 15. What comes out of a volcano
  8. 16. Boundary where plates move apart
  9. 17. Composite volcanoes are made out of ash, lava, and _?
  10. 19. Plates move very _?
  11. 20. Plates similar in density and collide
Down
  1. 1. Boundary where plates move past each other
  2. 3. Mountain range made of volcanic arcs
  3. 5. Types of volcanoes that are at subduction convergent boundaries
  4. 6. Ring of _?
  5. 9. Largest volcanoes, made of basalt
  6. 11. What is inside volcanoes
  7. 12. Plate under Europe
  8. 13. Transform boundaries have these type of earthquakes
  9. 18. Crust is neither created or _?