Earth layers

Question 1

What are the layers of the earth?

Answer 1

Crust, Lithosphere, Asthenosphere, mesosphere, outer core, inner core.

Question 2

What are the three main parts of the earth?

Answer 2

Crust, mantle, core.

Question 3

What waves arrive first at a seismograph?

Answer 3

P waves because they are faster.

Question 4

What do S-waves travel through?

Answer 4

Solids, and gasses.

Question 5

What is the outer core made of?

Answer 5

They are made of liquid.

Question 6

When do surface waves arrive?

Answer 6

They arrive last to an earthquake.

Question 7

What are the three major types of rocks?

Answer 7

Igneous, sediment, and metamorphic.

Question 8

What type of rocks make up the oceanic crust?

Answer 8

It is made of igneous rocks.

Question 9

Is oceanic crust thinner or thicker than continental?

Answer 9

Thinner than continental.

Question 10

What crust is denser oceanic or continental?

Answer 10

The oceanic crust is denser.

Question 11

What is the lithosphere?

Answer 11

It is very brittle.

Question 12

What is the asthenosphere like?

Answer 12

It has the same consistency as toothpaste.

Question 13

Where does the lithosphere rest?

Answer 13

It rests on the asthenosphere.

Question 14

What are the qualities of the lithosphere?

Answer 14

Rigid, solid, brittle.

Question 15

How deep is the lithosphere?

Answer 15

It is 100 km deep.

Question 16

What is the crust of the total earth mass?

Answer 16

1%.

Question 17

How does convection work in the mantle?

Answer 17

The core heats up the mantle and then the other it gets it rises and then it gets cool, and then sinks in the mantle and then repeats.

Question 18

What are the qualities of P waves?

Answer 18

Primary, faster, goes through solids liquids and gasses, compression wave, longitudinal.

Question 19

What is the shadow zone of P waves?

Answer 19

105-140.

Question 20

What are the qualities of S waves?

Answer 20

Secondary, slower, goes through solids and gasses, transverse.

Question 21

What is the shadow zone of S waves?

Answer 21

105 to 105.

Question 22

What are radioactive elements?

Answer 22

Uranium, thorium, potassium.

Question 23

What is the outer core made of?

Answer 23

Made of liquid metal.

Question 24

What percentages make up the mass of the earth?

Answer 24

crust 1%, mantle 68%, and the core is 31%.

Question 25

How thick is the mesosphere?

Answer 25

2710 km thick.

Question 26

Where do diamonds form in the earth?

Answer 26

They form in the upper mantle.

Question 27

How thick is the crust?

Answer 27

70km.

Question 28

How thick is the mantle?

Answer 28

It is 2900km.

Question 29

How thick is the inner core?

Answer 29

2300km.

Question 30

How thick is the outer core?

Answer 30

1200km.