Download Name: Date: Period: ______ Unit 7 – Oceans Review Test Details

Name: __________________________________________________________ Date: __________________________ Period: _________
Unit 7 – Oceans Review
Test Details
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50 multiple choice questions (2 pts each)
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43 point group test (creating an ocean floor profile, currents map, critical thinking questions)
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Test worth 143 points
Ch. 19 – The Ocean Basin
1. What is mid-ocean ridge?
2. What is oceanography?
3. What is sonar? How does it work?
4. What is a continental shelf?
5. How fast do sound waves travel in water? (Give your answer in ft/sec)
6. Where are the flattest regions on Earth located?
7. What is a trench?
8. Why is Earth called the water planet?
9. What is the largest ocean? How much water does it contain?
10. How would a glacial period during an ice age affect the continental shelf?
11. Review your “What is the Mystery Object” and “Mapping the Ocean Floor” worksheets. Be able to
calculate the depth of the ocean floor and create a profile of the ocean floor.
12. What do scientists calculate when using sonar?
13. Define global ocean.
14. What is a continental slope?
15. Where is the boundary between continental crust and oceanic crust located?
16. Where are the deepest parts of the ocean located?
17. What is the equation for determining the depth of the ocean floor using information gathered by
sonar?
18. Name 4 deep-ocean basin landforms.
20.1 – Properties of Ocean Water
19. What factors determine the temperature of ocean water?
20. Why is the ocean called a carbon sink?
21. What is the thermocline?
22. What are the 3 main dissolved gases in ocean water?
23. What type of ocean water dissolves gases most easily?
24. What determines the color of the ocean? (two things)
25. What is upwelling?
26. What is salinity?
27. How are dissolved gases affected by temperature changes?
28. What two factors influence density?
29. What is density?
30. Agree or Disagree: If the average temperature increases by 10°C worldwide, plant and animal life
in the ocean will change dramatically.
20.2 & 20.3 – Life & Resources in the Ocean
31. What is aquaculture?
32. What is the major disadvantage to aquaculture?
33. What is desalination?
34. What types of organisms are found in the benthic zone?
35. How do marine organisms help maintain the chemical balance of ocean water?
36. What is nekton?
37. Why are plankton considered the foundation of life in the ocean?
21.1 – Ocean Currents
38. What is a current?
39. Know the names and locations of all the ocean currents on your “Currents ‘Round the World” map.
40. How do ocean currents in the Northern Hemisphere differ from ocean currents in the Southern
Hemisphere?
41. What is the Coriolis effect?
42. In what direction do trade winds push currents?
43. What causes deep currents?
21.2 – Ocean Waves
44. What is wavelength?
45. Agree or disagree: During a storm, there is no limit to the height a wave can reach.
46. When does a breaker form?
47. What is the highest point of a wave called?
48. Why do larger waves grow larger?
49. What is fetch?
21.3 – Tides
50. What is a tide?
51. According to Newton’s law, what causes tides?
52. What is the difference between ebb tide and flood tide?
53. What is a neap tide? When does it occur?
54. Why do most ocean locations have two high tides and two low tides daily?
55. What is a spring tide? When does it occur?
56. What is the major cause of tides?
Review Material
57. What is chemical weathering?
58. What is always happening to Earth’s water?
59. How do glacial periods and interglacial period differ?
Good Luck!!!