plate tectonics

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Across
  1. 2. outer most layer of earth
  2. 4. tectonics/ theory that says the earth's crust and upper mantle are broken into dections
  3. 6. core/ solid core composed of dense iron and nickel
  4. 7. Adreas Fault/example of a transform fault boundry
  5. 8. boundry/where 2 plates are moving towards each other
  6. 9. mountains/example of a boundry where continental crust collided
  7. 11. crust and upper mantle
  8. 13. drift/ theory that the continents move
  9. 17. largest layer inside earth
  10. 18. core/ liquid core composed of iron and nickel
Down
  1. 1. trench/ deepest spot in the ocean example of converging oceanic plates
  2. 3. zone/ area where denser converging plate decends or sinks under a less dense converging plate
  3. 5. boundry/boundry b/w 2 plates that are separating
  4. 10. plastic layer below the lithosphere
  5. 12. super continent that existed 200 million yrs ago
  6. 14. boundry/boundry where 2 plates are moving or sliding next to each other
  7. 15. wegener/ scientist who thought that the continents were one super continent
  8. 16. large sections of earth's crust and upper mantle, lithosphere