Earth's layers Flashcards

1
Q

What are the layers of the earth?

A

Crust, Mantle, Inner Core, Outer Core.

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2
Q

Which layer is the thinnest?

A

The Crust

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3
Q

Which layer is the thickest?

A

Mantle

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4
Q

What are the two kinds of solid crust?

A

Continental and Oceanic

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5
Q

Which type of crust is thinner and more dense?

A

Oceanic

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6
Q

What are the two layers of the mantle?

A

The upper layer is the solid lithosphere and syrupy asthenosphere combined. The lower layer is solid material.

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7
Q

What are the tectonic plates made out of?

A

The tectonic plates are made up of large sections of the
lithosphere

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8
Q

Where do convection currents happen?

A

Mantle

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9
Q

What is the outer core made of?

A

Iron and nickel.

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10
Q

What is the outer core responsible for?

A

Earth’s magnetic field

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11
Q

What does the inner core provide?

A

The heat energy that drives the convection currents.

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12
Q

What gives us information about earth’s layers?

A

Seismic waves and rock samples.

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