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Science. > Layers Of The Earth > Flashcards

Layers Of The Earth Flashcards

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1
Q

What is the thinnest layer?

A

The crust averages 50 km

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2
Q

What state of matter is the crust?

A

Solid

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3
Q

What state of matter is the mantle

A

Liquid.

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4
Q

What state of matter is core?

A

Solid.

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5
Q

What layer is brittle and very thin?

A

Crust.

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6
Q

What layer is made of granite and basalt?

A

Crust

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7
Q

What is the composition of the mantle?

A

Iron
Magnesium
Calcium

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8
Q

Which layer is metallic, and includes iron and nickel?

A

Core, inner, and outer.

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9
Q

What creates the earths magnetic field?

A

When the liquid outer core spins.

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10
Q

What does the lithosphere consist of?

A

Crust, and the upper mantle

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11
Q

True or false, the asthenosphere is semi-solid because it is near the top of the mantle which is semi solid.

A

True

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12
Q

Why is the mesosphere a liquid?

A

It is the bottom of the mantle, which is a liquid.

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13
Q

What spins to create earths magnetic field?

A

The outer core

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14
Q

What state of matter is the outer core?

A

Liquid

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15
Q

What is the state of matter for the inner core?

A

Solid.

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16
Q

How do you form a ratio?

A

A. b
– = –
A. b

Cross multiply.
Ay Bxb
– = —–
A. A

17
Q

Name the layers by thickness.

A 
Crust
Lithosphere
Asthenosphere
Outer core 
Inner core
Mesosphere 
Mantle
Core
18
Q

What are the names of all the layers of the earth?

A

Crust
Mantle
Core

Lithosphere 
Asthenosphere 
Mesosphere 
Outer core
Inner core
19
Q

What are the layers by composition?

A

Crust mantle, core.

20
Q

What are the layers by interactions?

A 
Lithosphere
Asthenosphere 
Mesosphere
Outer core
Inner core.
21
Q

Name of the layers of the earth by place.

A

Crust -bit of lithosphere
Mantle-Lithosphere, mesosphere
Core-outer core, inner core

Science. (8 decks)

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