Chapter 7 &8

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