Across
- 2. the amount of space an object takes up
- 5. water underground
- 6. plantlike protist
- 7. sea
- 9. fresh water in a lake meets the salt water in the ocean
Down
- 1. a land covered in waterocean basin
- 3. gas to liquid
- 4. the amount of mass
- 8. not easy to dissolve
- 10. easy to dissolve