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☆☆☆☆☆The Earth's core.
the mantle and core are composed of different material
P waves refract as they travel through Earth. The shadow zone exists because of seismic waves. The shadows show when the earth spins around.
core
. The south magnetic pole of the compass points to Earth's north magnetic pole.
Comparing the composition of the crust to other bodies in the solar system.
Wondering slowly with no pattern
movement of ocean crust.
The sun's pole reversal is tied to the cycle of sunspots.
The suns pole reversals are tied to its seasons. This can be shown on a graph.
high presure and heat
denser
compass magnets can be deflected by earths magnetic field or other permanent magnets
Hot Plumes
Reverse
Its Thrust!
The molten bit of the Iron core.
The continental crust is up to 70 km thick.
Tidal heating supports the dynamo theory. Magnetized lunar rocks and asteroids are used for evidence of this.
http://phys.org/news/2012-10-evidence-dynamo-asteroid.html
Earth's outer core contains liquids that conduct electricity.
Earth's outer core is a liquid. Earth's core contains mostly iron and nickel.
At ocean ridges
magnetic stuff...
