Layers Of The Earth

Question 1

What is the uppermost layer of the earth called?

Answer 1

Crust

Question 2

What is the name of the crust and the uppermost layer of the mantle?

Answer 2

Lithosphere

Question 3

How deep is the mantle?

Answer 3

2900 km

Question 4

What are the tectonic plates?

Answer 4

The earths surface that is broken into large pieces

Question 5

What is the state of the inner core?

Answer 5

Solid with a temperature of 5700 degrees Celsius

Question 6

What is the temperature of the outer core?

Answer 6

Around 4000 degrees Celsius

Question 7

How deep is the continental crust and what is it made of?

Answer 7

10 - 50 miles of thick granite

Question 8

What density does oceanic crust have?

Answer 8

High density so it floats on the mantle like wood

Question 9

What does continental crust form?

Answer 9

The land

Question 10

How thick is oceanic crust and what is it made of?

Answer 10

1 - 3 miles deep, made of basalt (this basalt is chemically different to the basalt found in the mantle)

Question 11

What is a plume?

Answer 11

A body of magma that rises from the earths mantle into the crust

Question 12

What is the mantle made up of?

Answer 12

Semi molten rock called magma

Question 13

What is the inner and outer core made of?

Answer 13

Iron and nickel

Question 14

How thick is the inner core?

Answer 14

1250km

Question 15

How thick is the outer core?

Answer 15

Around 2200km thick

Question 16

What layers of the earth does the lithosphere cover?

Answer 16

Crust and the upper most part of the upper mantle

Question 17

What does the asthenosphere cover?

Answer 17

The top part of the mantle just below the lithosphere

Question 18

How many parts is the mantle made up of

Answer 18

2 parts but the upper mantle in then split into another two parts