Tectonic Plates

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Across
  1. 1. zone when a plate slides under another
  2. 3. rocks found in the mid-ocean ridge are the
  3. 5. the _____ is made up of plates
  4. 8. rises from the mid-ocean ridge
  5. 10. boundary when plates collide
  6. 11. occur at plate boundaries
  7. 14. Earth's crust is broken up into
  8. 16. convection
  9. 17. the supercontinent
  10. 18. the _____ core is liquid
  11. 19. volcanic ______ are formed when magma meets the surface
Down
  1. 2. boundary when plates slide against each other
  2. 4. margin when the edge of a continent is in the middle of a plate
  3. 6. contain the oldest rocks
  4. 7. the farther from the mid-ocean ridge the _____ rocks get
  5. 8. is made up of iron and silica
  6. 9. the _____ core is solid
  7. 12. margin when plates meet at the edge of a continent
  8. 13. the seafloor is
  9. 15. boundary when plates pull apart