Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Oceanography
Oceanography Exam 1
| Question | Answer |
|---|---|
| Marine Science (Oceanography) | Discovering and unifying principles in data obtained from the Ocean and it's associated life forms and bordering lands. |
| Earth facts | Covered 71% by water 61% N. Hemisphere 815 S. Hemisphere |
| Ocean stats | Average depth 12,451' (3800m) Max depth 36.000' (11,000m) Average Temp. 39f (3.9c) |
| Ocean | a body of saline water occupying depressions in the Earth's surface |
| 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 |
| Science | The systmatic process of asking questions about the observable world by gathering and studying information. |
| Scientific Method | A) Observation B) Hypothesis C) Test D) Conclusion |
| Hypothesis | A speculation proved through controlled experiments. |
| Early Marine Science was built out of ______? | Necessity |
| Historically speaking, the Eqyptians | And trade vessels on the Nile in 100 BC |
| Historically speaking, the Greeks | Had the first ship sail across the Atlantic. 900-700BC Greeks also discovered North south Currents named (Okeeanos)River. |
| Polynesia and China where also players in Sea Voyage | none |
| Cartographers | Chart makers, recorded info on locations, landmarks and currents. Most early expeditions had a cartographer aboard |
| Maps are to land, as charts are to _____? | Water based info. Currents, reef, coasts. |
| When was the Library of Alexandria founded? | 3rd Century B.C. It housed information an all aspects of hunam endeavor. |
| Celestial Navigation | Using the stars to navigate. Developed at Alexandria. |
| 1st to measure the Circumference of the Earth | Eratosthenes and it measured 40,070 km |
| Circumference of the Earth was later improved by who? | Ptolemy, and he measured it at 28,800km, much more accurate. |
| 1st person to chart lines of latitude through landmarks of the time? | Eratosthenes |
| The earth was later divided into equal units at 360 degrees. | Hipparchus (165-127 B.C. |
| He added North to maps, so people would always know which way was north. | Ptolemy |
| Lines of Longitude unlike Latitude? | Are not parallel |
| The Prime Meridian is located where? | Greenwich, England |
| Degrees for Navigation | 0 north 90 east 270 south 135 south-east 360 west |
Created by:
paulstpete
Popular Science sets