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Learning about Oceans

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Emily Orr

on 16 January 2013

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Transcript of Learning about Oceans

SONAR Scientists on Meteor (a German ship) mapped out the ocean floor using sonar with an echo sounder. An echo sounder produces pulses of sound. 2003 DEEP FLIGHT AVIATOR The Deep Flight Aviator is a new submersible that launched in San Francisco Bay. Maneuvering faster and more easily than others. 1986 REMOTE UNDERWATER MANIPULATOR The Remote Underwater Manipulator collects samples, takes photographs, and maps the ocean floor by itself. All controlled by a computer on a ship above water and about the size of a small car.

Seasat A-- the first satellite on earth to study oceans. 1978 SATELLITES Satellites provide data about the ocean conditions like temperatures, algae growth patterns, and the movement of large schools of fish. 1960 SUBMERSIBLES Explorers traveled down to the bottom of Challenger Deep, 11 km down in a thick metal vehicle-- the submersible Trieste 1943 SCUBA Self Contained Underwater Breathing Apparatus SCUBA, is a tank that holds compressed air attaching to a diver's was invented by Jacques Cousteau and Emile Gagnan.
By Ellie Schreur
Emily Orr
Brooke Nyeholt -As modern science is developing, trade increases, the ocean explorations are changing!

-The nation need maps of oceans and the land that borders them.

-Governments want to be know for discovering new science discoveries so they hire people to do it. Britain's government hired Captain James Hook to lead three voyages of exploration to make Britain known. The Captains has a crew that studies starts and collect plant and animal species.

-Ever since James Hook took his three voyages, basically all earth has been mapped!

-The expeditions marked the beginning of what we know as modern science in oceanography today. Scientific Discoveries Ocean Exploration Exploring the Ocean Floor Why haven't scientists explored the ocean floor until recently? -Because the ocean is so deep (2.3 miles on average) that's about twice as deep as the Grand Canyon! -Because it is so dark- sunlight doesn't reach the ocean floor -Because the water is extremely cold and there is very high pressure

Because of these problems, scientists have had to develop new technology to explore the ocean floor. These methods include... 1925 Trade Routes Learning About Oceans -Phoenicians (lived along the Mediterranean Sea) were the first to explore the ocean.

-They established routes for trading with other countries by the Mediterranean Sea by 1200 B.C. Therefore trade routes in the oceans have been happening for a long time!

-Once others saw what great things the Phoenicians could do with trade routes, everyone else started to join in also!

-Trade routes were started by the knowledge of Phoenicians by using the winds and currents.

-Trade Routes were taken by people who needed or wanted to get rid and swap items with others. This is a map, made of stick that they used This is one of many trade routes
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