Marine Science - Chapter 2 Vocabulary - Part 1

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Across
  1. 4. The light-colored rock that forms most of the continental crust.
  2. 5. The mass of a given volume of a substance.
  3. 7. The process by which new sea floor is formed as it moved away from the spreading centers in mid-ocean ridges.
  4. 9. A crack in the Earth's crust formed as pieces of the crust separate.
  5. 11. The dark-colored rock that forms the sea floor, or oceanic crust.
  6. 13. The continuous chain of volcanic, submarine mountains that extends around the Earth.
  7. 14. A cosmic explosion produced clouds of dust and gas from which Earth and the solar system originated.
  8. 16. The process involved in the movement of the large plates that make up Earth's crust.
  9. 18. Narrow, deep depressions in the sea floor.
  10. 19. Cracks in the Earth's crust usually formed when pieces of crust move past each other.
Down
  1. 1. Regions of Earth's lithosphere which move together over the Earth's asthenosphere; there are approximately 20 of these covering the Earth.
  2. 2. The natural environment where an organism lives.
  3. 3. Magnetic bands in the sea floor that run parallel to the mid-ocean ridge.
  4. 6. The movement of continental masses on the surface of the Earth.
  5. 8. The downward movement of a plate into the mantle that occurs in the trenches, which are also known as subduction zones.
  6. 10. The semiliquid region between the crust and the core of the Earth.
  7. 12. The outermost layer of the Earth that is composed of both continental and oceanic crust.
  8. 15. Loose material like sand and mud that settles on the sea bottom.
  9. 17. The innermost layer of the Earth.