Download 20.1 Reading Guide

Name_____________________________________________________ Period________
20.1 Reading Guide
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1. Why do you think that the ocean is a “place of mystery”?
2. What percent of the world is covered by oceans?
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3. Why is earth called the “water planet”?
4. What percent of the world’s water is not in the ocean?
5. What fraction is the ocean compared to the mass of the whole earth?
6. What are the three major oceans?
7. Why isn’t the Arctic Ocean considered an ocean like the others?
8. What is the difference between an ocean and a sea?
9. List three seas.
10. List six more seas from the map of the global ocean.
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11. What is the largest feature on the face of the earth?
12. What is the average depth of the Pacific Ocean? _______________ There are .62
miles in a kilometer. How deep is the Pacific Ocean in miles? _____________
13. Define oceanography.
14. List four topics that Matthew Maury made observations of.
15. What did the H. M. S. Challenger do?
16. What is a submersible?
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17. What is the Alvin?
18. When did the Titanic sink?
19. Why are robot craft more practical for deep ocean research than the craft designed to
carry people?
20. What does sonar stand for?
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21. Copy the diagram at the bottom of page 393.