Chapter 7 & 8

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Across
  1. 2. closest star to earth
  2. 4. The prime meridian is the main line
  3. 5. predominate theory of how the universe was created
  4. 8. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
  5. 9. The application of all sciences to the phenomenon of the ocean
  6. 11. percent of land covered in ice
  7. 12. an imaginary line about which a body rotates.
  8. 15. Study of changed and motions of seawater
  9. 17. percentage of earth that is ocean
  10. 19. why stars twinkle
  11. 22. percentage of earth covered in ice
  12. 23. What percent of the land is found north of the equator
  13. 25. Study of distribultion and environmental aspect of life in the ocean
  14. 26. the earths galaxy
  15. 27. biggest ocean
  16. 29. farthest distance light can travel down the ocean
  17. 30. speed (velocity is measured in knots)
Down
  1. 1. changing saltwater to fresh water
  2. 3. a large lake
  3. 6. the year the UN established major boundaries
  4. 7. Locked up in polar ice caps
  5. 10. Have very few natural particians
  6. 13. release or give off (a substance) as a gas or vapor.
  7. 14. percent of water covered in ice
  8. 16. smallest continent
  9. 18. the equator is the main line
  10. 20. smallest ocean
  11. 21. Ridge that separates one basin from another
  12. 24. color that can penetrate water the deepest
  13. 28. circular in shape, shallower than other oceans & 3% of the world's ocean