ch 3-5

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Across
  1. 3. long row of mountains on the sea floor
  2. 7. slow movement in the mantel
  3. 9. earths major ______
  4. 10. name of the super continent
  5. 12. earths crust on land
  6. 14. animal remains
  7. 15. slips past
  8. 19. moving older rock away from the ridge
  9. 20. driven by convection currents in the mantle
Down
  1. 1. downwards bend in the ocean floor
  2. 2. move apart
  3. 4. slow movement of the continents
  4. 5. earths crust in the ocean
  5. 6. mountain full of lava
  6. 8. name of scientist
  7. 11. constantly making new oceanic crust
  8. 13. molten material
  9. 16. cracks in the earths crust
  10. 17. comes together
  11. 18. valley parts of earths crust diverge on land creating a deep valley