Oceanography Exam 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Marine Science (Oceanography) | Discovering and unifying principles in data obtained from the Ocean and it's associated life forms and bordering lands.
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| Earth facts | Covered 71% by water
61% N. Hemisphere
815 S. Hemisphere
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| Ocean stats | Average depth 12,451' (3800m)
Max depth 36.000' (11,000m)
Average Temp. 39f (3.9c)
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| Ocean | a body of saline water occupying depressions in the Earth's surface
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| 4 Primary Sub-Divisions of Marine Science (Which are often inter-related) | Geological- Earth's crust
Chemical- Gasses, how solids are dissolved into water.
Physical- Waves, Currents, Climate
Biological- Living marine organisms
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| Science | The systmatic process of asking questions about the observable world by gathering and studying information.
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| Scientific Method | A) Observation
B) Hypothesis
C) Test
D) Conclusion
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| Hypothesis | A speculation proved through controlled experiments.
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| Early Marine Science was built out of ______? | Necessity
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| Historically speaking, the Eqyptians | And trade vessels on the Nile in 100 BC
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| Historically speaking, the Greeks | Had the first ship sail across the Atlantic. 900-700BC
Greeks also discovered North south Currents named (Okeeanos)River.
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| Polynesia and China where also players in Sea Voyage | none
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| Cartographers | Chart makers, recorded info on locations, landmarks and currents. Most early expeditions had a cartographer aboard
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| Maps are to land, as charts are to _____? | Water based info. Currents, reef, coasts.
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| When was the Library of Alexandria founded? | 3rd Century B.C. It housed information an all aspects of hunam endeavor.
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| Celestial Navigation | Using the stars to navigate. Developed at Alexandria.
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| 1st to measure the Circumference of the Earth | Eratosthenes and it measured 40,070 km
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| Circumference of the Earth was later improved by who? | Ptolemy, and he measured it at 28,800km, much more accurate.
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| 1st person to chart lines of latitude through landmarks of the time? | Eratosthenes
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| The earth was later divided into equal units at 360 degrees. | Hipparchus (165-127 B.C.
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| He added North to maps, so people would always know which way was north. | Ptolemy
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| Lines of Longitude unlike Latitude? | Are not parallel
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| The Prime Meridian is located where? | Greenwich, England
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| Degrees for Navigation | 0 north
90 east
270 south
135 south-east
360 west
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Created by:
paulstpete
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