Chapter 7 and 8

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Across
  1. 4. deepest points on Earth
  2. 10. Ocean connecting the polar waters
  3. 11. Percentage of land covered in ice
  4. 15. Color penetrating ocean water the deepest
  5. 16. Continent including Canada, Greenland, US, Mexico, and Central America
  6. 17. Continent of the South Pole
  7. 18. South of the Equator
  8. 19. Release of volatile substances and water vapor
  9. 21. Why do stars twinkle
  10. 26. How stars and planets were formed
  11. 27. What is still expanding
  12. 28. 0 degrees longitude
  13. 31. Distorts the continents as little as possible
  14. 32. Smallest ocean
Down
  1. 1. 0 degrees latitude
  2. 2. Meridians of
  3. 3. Name given to Earth when the outer surface was completely molten
  4. 5. Star’s core will eventually collapse in an explosion
  5. 6. Smallest continent
  6. 7. Continent bordered to the North by the Mediterranean Sea
  7. 8. Ancient supercontinent
  8. 9. Massive spheres of incandescent gas
  9. 12. Percentage of oceans covered in ice
  10. 13. Most maps used in classrooms
  11. 14. North of the Equator
  12. 20. Scientist (1953) known for his experiment finding the building blocks of life
  13. 22. Place of the primary reference line of longitude
  14. 23. Clumping smaller particles into larger masses
  15. 24. Parallels of
  16. 25. Cloud of cold dust and gas within a galaxy
  17. 29. Ocean with a trade route between Africa and Asia
  18. 30. 1 nautical mile per hour