Tectonic Plates

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Across
  1. 1. A break or long crack in rock
  2. 3. The place where rock melts to form magma
  3. 4. Center layer inside Earth
  4. 8. A tall mountain that erupts
  5. 9. Old supercontinent that broke apart
  6. 10. A sudden shaking of the ground
  7. 11. When plates pull apart under the sea
  8. 13. The thick rock layer under the crust
  9. 14. Melted rock that comes out during eruption
  10. 15. Hard outer part of Earth
  11. 17. Where two plates touch
  12. 19. Flow of hot rock that moves plates
Down
  1. 2. Boundary where plates slide
  2. 4. Boundary where plates meet head-on
  3. 5. Big blocks of Earth’s crust
  4. 6. A shaking caused by plate movement
  5. 7. Hot, melted rock below the surface
  6. 12. Boundary where plates move apart
  7. 16. When one plate goes under another
  8. 18. A deep ocean valley where subduction happens