6.3 Structure of the Earth

​What do we know about earth?

Word Cloud

How old do you think our earth is?

​Crust
Solid rocks

​Mantle (Molten Rock)

​Outer core (molten metals , Fe and Ni)

​Inner core (Solid metals , Fe and Ni)

Multiple Choice

What is the thinnest layer of the Earth?

• Mantle

• Inner Core

• Crust

• Outer Core

Multiple Choice

The thickest layer of the Earth is

• The crust

• The mantle

• The inner core

• The outer core

Multiple Choice

It is made up of melted rock

• Crust

• Mantle

• Core

• Lithosphere

Multiple Choice

It is as hot as the surface of the Sun

• Crust

• Mantle

• Inner Core

• Outer Core

Multiple Choice

It is totally liquid

• Crust

• Mantle

• Outer core

• Inner core

Multiple Choice

The inner core is:

• Solid

• Liquid

• Gaseous

• Plastic

Multiple Choice

Which two metals are thought to be found in the core?

• iron and steel
• iron and nickel
• gold and silver
• iron and copper

Multiple Choice

Which layer of Earth is liquid metal?

• Outer Core
• Mantle
• Inner Core
• Asthenosphere