Ocean Currents

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Across
  1. 3. the reason gyres rotate weirdly
  2. 5. the saltiness and density of water
  3. 8. plastic and fertilizer can be this
  4. 9. the moon causing the water to rise and fall
Down
  1. 1. a long, deep depression in the ocean floor
  2. 2. a force that pulls downwards
  3. 3. how water flows in the ocean
  4. 4. heats the moon and causes tides
  5. 6. a force that causes tides, unexpressly
  6. 7. A spherical object that causes tides