Oceanography Midterm SG 1

Oceanography Midterm SG 1 - Oceanography Study Guide...

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Oceanography Study Guide Midterm #1 1. Science is a systematic process of asking questions about the observable world by gathering and then studying information 2. Hypothesis: a speculation about the natural world that can be tested and verified or disproved by further observations and controlled experiments a. A model is a hypothesis that becomes a theory 3. 14 million people live within 50 miles of the ocean in CA. Ocean affects recreation, econonomic factors, and presents hazards (tsunami etc.) and environmental issues (sewage, runoff) 4. Because of the miscalculation of the earth’s size by Poseidonius, which was repeated by Ptolemy, the Europeans thought it would be possible to sail from Europe to asia. 5. Oceanography is a systematic study of the oceans. Its major areas of study include biological organisms (plants and animals), chemistry (seawater etc), geology, and physical properties. 6. The scientific method is the orderly process by which theories explaining the operation of the natural world are verified or rejected. 7. Latitude lines are parallel to the equator and run east/west. Longitutde lines run from pole to pole. 8. Early explorers did not use longitude because longitutde accounted for the rotation of the earth and there was no way to calculate it while at sea. 9. Early ocean explorers faced problems such as: scarcity of construction materials for boats, disease (scurvy), navigational problems, organization and leadership and political turmoil/warfare 10. The Vikings had to leave their north American colonies because of misunderstandings and battles with the locals, and the cold weather. They also lacked the numbers weapons and trading goods to make the colonies a success. 11. The turks capture of Constantinople in 1453 meant the closure of the passage to eastern asia. This forced Europeans to find another way to asia by boat. 12. The Polynesians navigated across the Pacific using stick charts which accounted for known islands, wave patterns and currents. They also used astronomy and the stars to get location and direction.
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13. The contributions of the Challenger expedition include: the first analysis of
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This note was uploaded on 04/29/2008 for the course GEOL 107Lxg taught by Professor Douglas during the Fall '07 term at USC.

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Oceanography Midterm SG 1 - Oceanography Study Guide...

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