Aquatic science rw

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Across
  1. 7. 4.5 percent of the _______ is covered with ice.
  2. 12. Stars form in a-
  3. 14. Material that ____ had minerals and water to form the Earth’s crust.
  4. 16. Primary reference of latitude-
  5. 18. Why do stars shine?
  6. 20. A star blows up and its called-
  7. 24. What covers 10 percent of earths total surface?
  8. 25. Continent of the south pole.
  9. 26. What sea is partially enclosed or isolated from other sections of ocean?
  10. 28. What color penetrates the deepest in the ocean?
  11. 29. Huge rotating aggregations of stars, dust, and gas held together by-
  12. 30. 4.6 billion years ago, the ____ was formed.
Down
  1. 1. What country does the primary reference line to longitude cross through?
  2. 2. What star is a typical star?
  3. 3. Bacteria like organisms are the oldest ____ .
  4. 4. Tallest mountain in the world.
  5. 5. Name of our universe.
  6. 6. Atlantic ocean connects ______ waters.
  7. 8. The UN was established in-
  8. 9. Earth is believed to have been formed by aggregations of-
  9. 10. The heavy rains were caused by-
  10. 11. Covers approximately one-third of earth's surface.
  11. 13. What is 23.5 degrees?
  12. 15. All oceans are-.
  13. 17. What is the smallest and coldest ocean?
  14. 19. The universe is still-
  15. 21. 5.5 percent of the ______is covered with ice.
  16. 22. There are ____ major continents
  17. 23. Latitude lines are-
  18. 27. Scientist can't measure the age of the oldest rocks because those rocks were probably-