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15 Cards in this Set
- Front
- Back
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Can you dig a hole to China?
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You wouldn't be able to. But if you tried it would be very hot with a lot of pressure.
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What wave is like a slinky?
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Compressional Wave
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What is radioactive heat?
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The decay of one element to another.
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What is primordial heat?
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Existing since the beginning of the Earth. Big Bang lumped to form planets - objects collided - heat was created.
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What is the crust?
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6-7 Kilometers thick, on the surface of the earth.
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Continental Crust
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Less dense, lighter, much older/thicker than oceanic crust.
Floats on mantel |
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Oceanic Crust
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thinner, younger, made up of silicon and magnesium
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Mantel
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Upper part-Solid
Lower part-Like a liquid Made up of iron, magnesium, aluminium, silicon, oxygen |
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The Core
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made of iron, nickel
2 areas: inner and outer core |
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How can we be sure of the makeup of the Earth's interior without actaully going there?
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people study shock waves, meteorites, and other processes within the Earth.
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Convection
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The transfer of heat by the flow of heated materials.
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Conduction
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Tranfer of heat that occurs when molecules collide.
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Radiation
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Transfer of heat through matter or space by electromagnetic waves.
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P-Wave
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Type of earthquake wave that compresses. It can travel through solids and liquids.
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S-Wave
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Type of earthquake wave that moves side to side. Can only travel through liquids.
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