'Mountain chains' diaporamas de présentation

Plate Tectonics

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The Ocean Floor

The Ocean Floor. Seeing by SONAR. SO und N avigation A nd R anging A ship sends sound waves to the ocean floor. The sound waves bounce off the floor and back to the ship. The deeper the water, the longer it takes for the sound waves to return.

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GEOLOGY

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Geologic History of Canada

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Physical Geography of the United States and Canada: A Land of Contrasts

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Traps and Seals

Traps and Seals. They are not what you think. Where does oil and gas come from?. What is a trap?. A trap is a place where oil and gas are barred from further movement, and remember that a trap is trap whether it is barren or productive. A simple anticlinal trap. Facts on traps.

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Physical Characteristics of the Earth Movement and Resultant Landforms

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Regions Of Pennsylvania

Regions Of Pennsylvania. A region is a large surface of land area that has some feature in common. Atlantic Coastal Plain. Delaware River and Philadelphia. Land Formation: Plain. A plain is a flat land. They can be lower or higher in elevation.

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Continental Drift

Continental Drift. Continental Drift Theory. Alfred Wegener. the gradual movement of the continents across the earth's surface through geological time. Drifting Continents. Geologists believed that the continents remained fixed in their position.

544 views • 23 slides

Physical Geography of the United States and Canada: A Land of Contrasts

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Geographic Review

Geographic Review. Coastal Plain. Broad lowland providing many excellent harbors Old eroded mountains Hills worn by erosion and hundreds of lakes carved by glaciers. Appalachian Mountains. Located along the Atlantic Ocean and Gulf of Mexico

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The United States of America

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The United States of America

276 views • 14 slides

Lesson 2

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The Age of Reform:

The Age of Reform:. The Abolitionists. Early Efforts to End Slavery. The spirit of reform that swept the United States in the early 1800s included the efforts of abolitionists , reformers who worked to abolish, or end, slavery.

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Plate Tectonics

Plate Tectonics. Who thought of that?!. The first time someone noticed the similar coastlines was in the late 1500s Cartographers Alfred Wegener was the first with the idea of moving continents Provided the basis for Plate Tectonics . Wegener. Developed the idea of continental drift

192 views • 10 slides