tectonic plates by parvaaz

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Across
  1. 1. a steep sided depression
  2. 3. when the plates come towards each other
  3. 5. when the plate subducts under the other plate
  4. 7. where all the continents used to be connected
  5. 9. a earthqauke
  6. 11. the liqud layer of the earth
  7. 14. made of the crust and upper mantle
  8. 16. an arc shaped chain of volanoes
  9. 17. came up with the theory of continental drift
  10. 20. found in the ocean after the plates diverge
  11. 22. a dense rock that makes the oceanic crust
  12. 24. where the plates float
  13. 25. The theory of the continentints moving slowly
Down
  1. 2. made of mostly granite
  2. 4. when the plates slide past each other
  3. 6. A iron rich rock made of magma
  4. 8. super hot but not liqud because the material are too compressed
  5. 10. caused when the plate tectonics intreact with each other
  6. 12. made of mostly basalt
  7. 13. when the plates pull apart from each other
  8. 15. makes up the continental crust
  9. 18. lava that is cooled up
  10. 19. the outer layer of the earth
  11. 21. the semi-plastic layer of the earth above the outer core
  12. 23. when lava goes between the crack of the crust and becomes soild