3.Earthquakes & Volcanoes: Plate Tectonics - Geography CIE IGCSE

How many layers does the Earth have?

• 1

• 2

• 3

• 4

What is the name for the hard outermost layer of the Earth?

• Outer Core

• Mantle

• Inner Core

• Crust

What is the name for the second layer of the Earth (moving inwards)

• Outer Core

• Mantle

• Inner Core

• Crust

What is the name for the centre of the Earth?

• Outer Core

• Mantle

• Inner Core

• Crust

What is the name for the third layer of the Earth (moving inwards)

• Outer core

• Mantle

• Inner Core

• Crust

How thick is the crust?

(a)  

How thick is the outer core?

(a)  

How thick is the mantle?

(a)  

How thick is the Earth? (From the edge of the crust to the centre of the inner core)

(a)  

What is the outer core made of?

• Bassalt

• Molten iron

• Molten rock

• Lava