OCEAN MAPPING
PART A
PARAGRAPH 1: Take a few moments and brainstorm a list of 4 or 5 underwater obstacles they may have encountered and 4 or 5 methods that could have been used to find the obstacles.
PARAGRAPH 2: Why did the sailors need to know what was beneath their ship?
PARAGRAPH 3: Besides mapping, name some uses of sonar today.
PARAGRAPH 4: Name some modern-day uses of the old methods of depth finding?
PART B
Formula for measuring depth:
Depth= Speed of Sound in Water (1507 m/s) X ½Time
D= V x 1/2 T
1. 0.13
2. 0.27
3. 0.53
4. 2.65
5. 2.65
6. 2.92
7. 4.25
8. 4.25
9. 2.65
10. 1.86
11. 1.33
12. 3.98
13. 4.51
14. 6.10
15. 6.90
16. 8.49
17. 14.60
18. 6.64
19. 7.96
20. 7.43
PART C
Using your calculations from above, create a graph showing the relationship between distance from shore and depth.
Distance from
Shore (km)
1. 10
2. 20
3. 30
4. 40
5. 50
6. 60
7. 70
8. 80
9. 90
10. 100
11. 110
12. 120
13. 130
14. 140
15. 150
16. 160
17. 170
18. 180
19. 190
20. 200