plate tectonics

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Across
  1. 3. ridgs moving apart
  2. 4. the crust forming on the ocean floor
  3. 7. how many extremly large plates are there
  4. 9. the evidence of the north and soth poles changing places
  5. 11. the centre layer of the earth
  6. 17. a mountain range is formed by the collision of plates
  7. 18. the continents moving apart
  8. 20. the crust sinking down
Down
  1. 1. ridges moving togeather
  2. 2. a ocean ridge in the atlantic ocean
  3. 5. all the continents combined
  4. 6. where the crust has sunk into the ground
  5. 8. a plate in the pacific ocean
  6. 10. the crust forming on the continents
  7. 12. what we live on
  8. 13. what island is located on the mid-atlantic ridge
  9. 14. what land features are made from converging plates
  10. 15. what is the top layer of the world
  11. 16. the semi rock layer of the earth
  12. 19. plates sliding past each other