Earth Systems Crossword Puzzle (5% Extra Credit)

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Across
  1. 2. a type of volcano that has explosive eruptions with slow, sticky flowing lava
  2. 4. deep part of the ocean created by subduction zones
  3. 6. a "sleeping" volcano
  4. 8. the process by which oceanic crust slips beneath continental crust, returning to the mantle
  5. 9. the unit of measuring an earthquake's energy output
  6. 11. the origin point of an earthquake
  7. 12. the theory of a spreading sea floor
  8. 15. plates moving together
  9. 18. the theory that continents were at one point all together in one supercontinent
  10. 19. a volcano that is erupting or will erupt soon
Down
  1. 1. the number of major tectonic plates
  2. 3. a type of volcano that can have both quiet and explosive eruptions
  3. 4. large, damaging waves created by underwater seismic activity
  4. 5. a type of volcano that has quiet eruptions with quick, smooth flowing lava
  5. 7. how fast or slow a liquid flows
  6. 10. a dead volcano
  7. 13. the crack in the middle of a divergent boundary
  8. 14. plates moving away from each other
  9. 16. a weak spot in the Earth's crust th
  10. 17. plates moving past one another