oceans

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Across
  1. 3. the slope at the edge of a shelf continentalshelf the area of where compared with the open ocean.
  2. 6. the alternate rising and falling of the sea
  3. 9. on the deep ocean floor. It is usually found 3,000 metres
Down
  1. 1. long depressions on the seafloor.
  2. 2. is an island of volcanic origin.
  3. 4. a body of water or air moving in the ocean
  4. 5. the force that attracts you back down to earth
  5. 7. lowland region that forms where Earth's tectonic plates move apart
  6. 8. formed by plate tectonics
  7. 10. A volcanic mountain that is flat topped