Layers of the Earth

Question 1

What is the uppermost layer of the earth called?

Answer 1

The crust

Question 2

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

Answer 2

Lithosphere

Question 3

How deep is the mantle?

Answer 3

2900 km

Question 4

What are tectonic plates?

Answer 4

The earth’s surface broken into large pieces

Question 5

What is the state of the inner core?

Answer 5

Solid, with a temperature of 5700 degrees

Question 6

What is the temperature of the outer core?

Answer 6

Around 4000 degrees

Question 7

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

Answer 7

10-50 miles of granite

Question 8

What does continental crust form?

Answer 8

The land

Question 9

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

Answer 9

1 - 3 miles of basalt

Question 10

What is a plume?

Answer 10

A body of magma that rises from the earth’s mantle into the crust

Question 11

What is the mantle made of?

Answer 11

Semi-molten rock called magma

Question 12

What is the inner and outer core made of?

Answer 12

Iron and nickel

Question 13

How thick is the inner core?

Answer 13

1250 km

Question 14

How thick is the outer core?

Answer 14

2200 km

Question 15

What does the asthenosphere cover?

Answer 15

The top part of the mantle just below the lithosphere