Across
- 2. we have one and it's called the chesapeake blank
- 4. The liquid that is vital live
- 6. living thing
- 7. Earth's sister planet
- 9. animals
- 10. Gassy
- 12. rocky and bumpy
- 13. second most abundant element in our air
Down
- 1. interacting organisms
- 3. marshes or swamps
- 5. plants
- 8. The red planet
- 11. Only planet with living organisms