chapter 8

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Across
  1. 2. made up of helium and hydrogen
  2. 8. reference line that runs east to west
  3. 9. trade route between africa and asia
  4. 12. covers 10% of the total surface of the Earth
  5. 14. 2nd largest ocean
  6. 15. includes europe and asia
  7. 17. an explosion of a star
  8. 18. reference line drawn around earth halfway between north and south poles
  9. 19. where star's are originated
  10. 21. mostly used map in classroom
  11. 22. the political boundary that seperates north and south america
  12. 23. give a 2-d representation of a 3-d object
  13. 24. smallest of continents
  14. 26. planets formed through this which clumped smaller particles together
  15. 27. largest ocean
  16. 28. disorts the continents as little as possible
Down
  1. 1. meridian refrence line drawn between east and west
  2. 3. what is the main element in density stratification
  3. 4. reference line that runs north to south
  4. 5. continent of the south pole
  5. 6. the name of the earth's galaxy
  6. 7. what color can penetrate the ocean waters the deepest
  7. 10. continent bordered by the mediterranean sea
  8. 11. the first organisms on the planet earth
  9. 13. globes were cut apart but has equal area
  10. 16. volatile gasses released
  11. 20. formed between 4.5-4.6 billion years ago
  12. 21. known as map makers
  13. 25. smallest ocean
  14. 26. what does the Earth rotate on