Structure of the Earth

How many layers is the Earth made up of?

The layer of Earth directly under your feet is called the _____?

• inner core

• outer core

• mantle

• crust

Which layer of the earth is the thinnest?

• inner core

• outer core

• mantle

• crust

How thick is the crust?

• 8-40 millimetres

• 8-40 metres

• 8-40 kilometres

• 8-40 miles

The top layer of the Earth (the crust) is a:

• solid

• liquid

• gas

Which layer of the earth is the thickest?

• inner core

• outer core

• mantle

• crust

The mantle is _________ than the crust. Select all that apply.

• hotter

• thicker

• more fluid/flowing

• a greater biodiversity hotspot

Earth’s outer core is approximately the same temperature as the surface of what?

• the moon

• the sun

• pluto

• jupiter

The outer core is approximately 4000-6000°C and is:

• solid

• liquid (4000-6000°C)

• gas

This layer of the earth is called the ______________. You must spell it correctly!