Plate Tectonic

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Across
  1. 3. Relating to ocean depths of 2000 to 5000 meters
  2. 5. Chemistry of the Earth's crust
  3. 8. Characteristic of the earth or moon's crust
  4. 10. Longest unit of geological time
Down
  1. 1. Specialist in the history of the earth recorded in rocks
  2. 2. Process of covering the earth in ice masses
  3. 4. Structure or movement of the earth's crust
  4. 6. Living on or occurring in the ocean
  5. 7. Regions of the earth that living organisms exist
  6. 9. Mass, Large continuous extent of land