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Plate Tectonics

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Leland Grant

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Cards in this guide (18)
What is the mechanical layer of Earth that has the most active convection currents

The Earth's core.

Which plate is covering most of two continents

convergant boundary and divergant boundary

What type of boundry forms when two plates pull apart

Divergant plate boundries

Which best describes earths north magnetic pole

Wondering slowly with no pattern

The sun's pole reversals are tied to its

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.

Oceanic crust slides under continental crust during subduction because oceanic crust is

denser

What kind of fault moves because it is under tension

A normal fault moves because it is under tension.

What was used to dispute continental drift

Evidence of land bridges was used to dispute continental drift.

New crust forms what kind of new boundaries

Divergent boundaries create new crust.

What does Ehat mean

Existing

Which of the Earths layers is just below lower mantle

The molten bit of the Iron core.

What is the suns pole reversal tied to

System of orbits

What is a type of boundary where two plates put apart

A divergant plate boundary.

Which features are associated with divergant boundaries

Mountain chains at ocean ridges

Inner core definition

the inner part of earths core

What did the magnetic strips prove in seafloor spreading

They proved that the seafloor was spreading.

The continental crust is what

The continental crust is up to 70 km thick.

Where does the south pole a compass magnet points

The north of the compass points to Earth's magnetic south pole, which is to the north.

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Which best describes earths north magnetic pole

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