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15 Cards in this Set

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  • Back
Can you dig a hole to China?
You wouldn't be able to. But if you tried it would be very hot with a lot of pressure.
What wave is like a slinky?
Compressional Wave
What is radioactive heat?
The decay of one element to another.
What is primordial heat?
Existing since the beginning of the Earth. Big Bang lumped to form planets - objects collided - heat was created.
What is the crust?
6-7 Kilometers thick, on the surface of the earth.
Continental Crust
Less dense, lighter, much older/thicker than oceanic crust.
Floats on mantel
Oceanic Crust
thinner, younger, made up of silicon and magnesium
Mantel
Upper part-Solid
Lower part-Like a liquid
Made up of iron, magnesium, aluminium, silicon, oxygen
The Core
made of iron, nickel

2 areas: inner and outer core
How can we be sure of the makeup of the Earth's interior without actaully going there?
people study shock waves, meteorites, and other processes within the Earth.
Convection
The transfer of heat by the flow of heated materials.
Conduction
Tranfer of heat that occurs when molecules collide.
Radiation
Transfer of heat through matter or space by electromagnetic waves.
P-Wave
Type of earthquake wave that compresses. It can travel through solids and liquids.
S-Wave
Type of earthquake wave that moves side to side. Can only travel through liquids.