Chapter 7&8

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Across
  1. 2. Cloud of gas and dust in outer space
  2. 5. 60 of these in a degree
  3. 6. star that ejects brightness due to a catastrophic explosion
  4. 7. A half of earth
  5. 9. Reference line for longitude
  6. 11. Other word for lines of longitude
  7. 13. Largest ocean and is between Asia and the Americas
  8. 14. Percentage of Earth covered in ice
  9. 16. Smallest continent
  10. 18. When did Earth form
  11. 19. How many moons does Earth have
  12. 20. Earth’s galaxy
  13. 21. Other word for lines of latitude
  14. 23. Continent that includes, France and Spain
  15. 24. why do stars twinkle
  16. 27. Ocean between the Americas and Europe/Africa
  17. 28. Warmest ocean and trade route between Asia and Africa
Down
  1. 1. What controls Earth’s tides
  2. 2. Continent containing the USA, Canada, and Mexico
  3. 3. 60 of these in a minute
  4. 4. Continent containing Brazil and Argentina
  5. 8. Where Prime Meridian passes through
  6. 10. Line where the date changes by one day
  7. 12. How long did accretion last.
  8. 15. Reference line for lines of latitude
  9. 17. Continent that includes, China and Japan
  10. 22. Continent bordered by the Indian, Atlantic and Mediterranean Sea
  11. 25. Ice continent of the south pole
  12. 26. Most commonly used world map in class rooms.
  13. 27. Smallest and coldest ocean