Across
- 2. the largest ocean
- 4. every chemical made up of it
- 5. layer that protects us from Uv
- 10. stars core collapse
- 14. ocean that connects polar waters
- 16. canal that seperates north and south america
- 18. primary reference line for the equator
- 19. city in england the reference line goes through
- 21. man who mixed atmosphere gases
- 22. growth of matter
- 23. the smallest ocean
- 24. started the expansion of the universe
- 25. the body of the stars swell
- 26. early atmosphere gas
Down
- 1. another word for half
- 2. inner material concentrated
- 3. something water is collected in
- 6. continent in the northern hemisphere
- 7. people who make maps
- 8. city on the north parallel
- 9. last name of man who said plants are still expanding
- 11. to release or give off vapor
- 12. primary reference line for prime meridian
- 13. angle at which earths axis is titled
- 15. name of our galaxy
- 17. the pole the earth rotates on
- 20. cloud of cold dust and gas within a galaxy
- 21. city on the south parallel
- 22. continent in the southern hemipshere
- 27. shape of the earth