Underwater World

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Across
  1. 2. beneath the surface of water
  2. 3. to do research or study science topics
  3. 5. a ship that can explore underwater for a long time
  4. 6. a large floating piece of ice in the ocean
  5. 8. a scientist who studies living organisms
  6. 9. a sea creature with eight legs
Down
  1. 1. a machine in space used to take pictures and collect information
  2. 4. to go on a journey to find answers and do research
  3. 5. a person who studies nature and sciences
  4. 7. a area where plants and animals work together in a community