Tectonic Plates

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Across
  1. 4. the most outer solid portion of the planet Earth
  2. 7. the theory of Continental ______
  3. 8. the sea floor pulls apart due to continental drift
  4. 9. a supercontinent where all current continents fit together
  5. 12. the outer part of the Earth's crust
Down
  1. 1. the scientist who first proposed the theory that the continents drifted
  2. 2. paleontologists noticed these were the same on continents separated by oceans
  3. 3. the section of Earth below the crust
  4. 5. a theory that believed the hot earth cooled into cracked plates of land
  5. 6. one tectonic plate slides under another
  6. 10. the coast of South America seems to fit to the coast of this continent like a jigsaw puzzle
  7. 11. deposits proof that continents have drifted because this mineral is only found where there used to be tropical vegetation