Earth's Atmosphere
Earth's Atmosphere
Transcript: Earth’s atmosphere is unique within the solar system mostly because of the nitrogen and oxygen that form the... Read more
20 Jul 2011
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1min
Magnetic Fields
Magnetic Fields
Transcript: The ancient Greeks knew about loadstones. These were curtain rocks which, when suspended in a fluid, would ... Read more
20 Jul 2011
•
1min
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Transcript: Cratering affects the evolution of planets. The cratering history of the Earth has varied over its history.... Read more
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Transcript: Earth is continually sculpted by erosion. Erosion refers to all processes generally caused by wind, rain, a... Read more
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Volcanism
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Transcript: The convective motions of the liquid and semi-liquid rock deep within the Earth create enormous stresses on ... Read more
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Geological Activity
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Transcript: The Earth is a geologically active place driven by energy release from radioactive decay deep in the interio... Read more
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Plate Tectonics
Plate Tectonics
Transcript: Every child who's stared at a map of the Earth has noticed that the continents seem to fit together like pie... Read more
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Rock Types
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Transcript: There are three basic types of rocks found on the Earth. The first are called igneous rocks. These form fr... Read more
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Rocks of the Earth
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Transcript: The rocks of the Earth that we are most familiar with are those right at the surface of the crust. The deep... Read more
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Layers of the Earth
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