Volcano Puzzle

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Across
  1. 3. Process where one tectonic plate moves under another.
  2. 5. The brittle outermost layer of Earth.
  3. 8. Sudden shaking of the Earth's surface caused by plate movement.
  4. 11. Plate boundary where plates move apart.
  5. 12. Plate boundary where plates slide past one another.
  6. 13. Deep underwater valley formed by subduction zones.
  7. 14. Crack in the Earth’s crust where plates move.
  8. 17. Plate boundary where plates move toward each other.
  9. 18. Layer between the crust and core, semi-solid rock layer.
  10. 19. Relating to earthquakes or vibrations in the Earth.
  11. 20. Large underwater mountain range formed at divergent boundaries.
Down
  1. 1. Long crack or opening in Earth's surface where lava can erupt.
  2. 2. Volcanic activity not at plate boundaries caused by mantle plumes.
  3. 4. Point on Earth’s surface directly above an earthquake’s origin.
  4. 6. Large section of Earth's crust that moves over the mantle.
  5. 7. Large crater formed when a volcano collapses after an eruption.
  6. 9. Molten rock beneath the Earth’s surface.
  7. 10. Soft, flowing layer of the mantle beneath the lithosphere.
  8. 15. Molten rock that erupts onto the Earth's surface.
  9. 16. Mountain that erupts molten rock.