sea floor spreading

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Across
  1. 3. Large and deep drops in the sea floor.
  2. 6. Hot material below earths surface.
  3. 9. The lower liquid section of the mantle.
  4. 10. The super continent the earth used to be.
  5. 12. When a oceanic plate slides beneath a Continental plate.
  6. 14. Being connected to a continent.
  7. 15. Sound waves that allow scientists to measure the floor.
  8. 17. the man who theorized sea floor spreading.
  9. 18. A low land region formed on land by separating plates.
  10. 19. the liquid layer of the core
Down
  1. 1. The movement of heat in a heated fluid.
  2. 2. The man who came up with the theory of continental drift.
  3. 4. The flowing of heat in the mantle.
  4. 5. An elevated area on the sea floor separating two plate.
  5. 6. The layer of earth where convection currents occur.
  6. 7. The solid layer of the core
  7. 8. Being connected to the ocean or sea floor.
  8. 11. The process where the continents move across the globe.
  9. 13. Large slabs of rock that divide earths crust.
  10. 16. the upper solid section of the mantle.