Investigating Earth's Oceans (Introduction to Earth Science)

Investigating Earth's Oceans (Introduction to Earth Science)

Language: English

Pages: 88

ISBN: 1615304975

Format: PDF / Kindle (mobi) / ePub


Describes the physical, chemical, and biological aspects of the world's oceans, including global tides, water masses, the plants and animals living in the oceans, and how scientists study each aspect.
Title: Investigating Earth's Oceans
Author: Anderson, Michael (EDT)
Publisher: Rosen Pub Group
Publication Date: 2011/08/15
Number of Pages: 88
Binding Type: LIBRARY
Library of Congress: 2010049489

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accurately predict, for example, long-term weather and climatic changes and also leads to more efficient exploitation of Earth’s resources. Oceanography is also crucial to understanding the effect of pollution on ocean waters and to the preservation of the quality of the oceans’ waters in the face of increasing human demands made on them. 76 Glossary abyssal Of or relating to the bottom waters of the ocean depths. basalt A dense, dark, often glassy-appearing volcanic rock. benthos Organisms

Kansas, was formed on seabeds from the shells of sea creatures. The oceans also affect climate. Water has a high capacity for storing heat. It warms more slowly than land, and it also cools more slowly. Thus the coasts of the continents have cooler summers and warmer winters than the inland areas. One example of this moderating effect is the Gulf Stream, a warm current in the North Atlantic flowing from Gulf of Mexico northeast along United States coast to Massachusetts and then eastward toward

an oceanic water layer in which the temperature decreases rapidly with increasing depth. In autumn, more heat is lost to the atmosphere than is gained by the ocean. It takes more heat to raise the temperature of a given volume of water one degree Fahrenheit than it does to raise the temperature of the same volume of sand one degree. This, together with the fact that the warmed water is mixed many tens of feet deep, makes the oceans huge reservoirs of heat. Heat is stored in summer and slowly

contrast, when the lines between the Sun and Earth and the Moon and Earth are perpendicular to one another (bottom), high tides and low tides are moderated. Encyclopædia Britannica, Inc. 36 Physical and Chemical Oceanography 37 Investigating Earth’s Oceans Between these two water masses, most of the depth is filled by Atlantic Deep Water, which takes on its characteristic temperature and salinity in the north and moves southward, mixing slowly with the surrounding water. Mixing of the

but also occur in the northern borders of the Indian Ocean, in the outer loops of the Caribbean, and in 63 Investigating Earth’s Oceans the Scotia Arc, an island system in the South Atlantic. They mark some of the deepest spots in the ocean: the Mariana Trench off the coast of Guam, the Tonga Trench in the South Pacific, and the Philippine Trench. Troughs are elongated depressions with contours more gradual than those of trenches. Some trenches are partially filled with sediments and appear

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