Zealandia

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Across
  1. 3. study of rocks
  2. 6. splitting due to physical properties
  3. 9. the largest ocean
  4. 10. the hidden 8th continent
  5. 11. type of rock that makes up oceanic crust
  6. 12. a very large expanse of sea
Down
  1. 1. the action of "scraping" the seafloor
  2. 2. a large land mass
  3. 4. a physical or social scientist; a humanist
  4. 5. a supercontinent
  5. 7. how many continents the earth has
  6. 8. finding evidence and gaining knowledge