SCIENCE RULES

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Across
  1. 2. flat part of ocean
  2. 5. the make up of a substance
  3. 8. When the tide is higher than usual.
  4. 10. a current on the surface of the water
  5. 11. the amount of salt in water
  6. 13. when the tide is at it lowest point
  7. 17. a underwater mountain range
  8. 18. the rise and fall of water caused by the moon
  9. 19. the process of moving broken down rock.
  10. 20. underwater volcano
Down
  1. 1. the edge of the continent in an ocean.
  2. 3. the compactness of a substance
  3. 4. this directs the movement of currents
  4. 6. what forms when plates spread apart with no magma coming through
  5. 7. a crack or valley in the middle of the ocean
  6. 9. the blank is the first part of the continent ending
  7. 12. currents deep in the ocean
  8. 14. the dropping off of broken down sediments
  9. 15. a movement of energy moves water
  10. 16. The range of high and low tides