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Plate Tectonics

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Eulalia Doyle

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Term1/14
What is the mechanical layer of Earth that has the most active convection currents
Definition1/14

The Earth's core.

Term1/14
The dynamo theory states that Earth's magnetic field is created in the layer known as the
Definition1/14

core

Term1/14
Which describes how a compass works
Definition1/14

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

Term1/14
Which is a method that scientists use to determine the composition of Earth's layers
Definition1/14

Comparing the composition of the crust to other bodies in the solar system.

Term1/14
Which best describes earths north magnetic pole
Definition1/14

Wondering slowly with no pattern

Term1/14
The sun's pole reversals are tied to its
Definition1/14

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.

Term1/14
What factor is responsible for keeping the inner core in a solid state
Definition1/14

high presure and heat

Term1/14
Oceanic crust slides under continental crust during subduction because oceanic crust is
Definition1/14

denser

Term1/14
What is true about compasses
Definition1/14

compass magnets can be deflected by earths magnetic field or other permanent magnets

Term1/14
Which theory of plate movement involves magma rising all the way from the lower mantle to spread the plates apart
Definition1/14

Hot Plumes

Term1/14
The continental crust is what
Definition1/14

The continental crust is up to 70 km thick.

Term1/14
What evidence supports dynamo theory
Definition1/14

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.

Term1/14
New crust forms
Definition1/14

At ocean ridges

Term1/14
Which of the following is true of permanent magnets
Definition1/14

magnetic stuff...

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Cards in this guide (14)
What is the mechanical layer of Earth that has the most active convection currents

The Earth's core.

The dynamo theory states that Earth's magnetic field is created in the layer known as the

core

Which describes how a compass works

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

Which is a method that scientists use to determine the composition of Earth's layers

Comparing the composition of the crust to other bodies in the solar system.

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.

What factor is responsible for keeping the inner core in a solid state

high presure and heat

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

denser

What is true about compasses

compass magnets can be deflected by earths magnetic field or other permanent magnets

Which theory of plate movement involves magma rising all the way from the lower mantle to spread the plates apart

Hot Plumes

The continental crust is what

The continental crust is up to 70 km thick.

What evidence supports dynamo theory

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.

New crust forms

At ocean ridges

Which of the following is true of permanent magnets

magnetic stuff...

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