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The Earths Core
Term | Definition |
---|---|
crust | thin, solid, outermost zone of the Earth |
mantle | the layer that underlies the crust and is denser than the crust |
lithosphere | rigid layer 15-300km thick |
Athenosphere | less ridged, 200-250km thick. |
mesosphere | layer of solid mantle rock |
Core | the center of the Earth, made out of iron and nickel |
outer core | liquid |
inner core | solid |
mass | the amount of matter in an object or substance |
volume | the amount of space an object or substance takes up |
matter | anything that has mass and takes up space |
energy | the ability to do work and cause changes |
oblate spheroid | slightly flattened sphere |
seismic waves | vibrations that travel through Earth |
magnetosphere | Earth's magnetic field |
gravity | the force of attraction that exists between all matter in the universe |