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