Test Review

How many layers does the Earth have?

• 1
• 3
• 4
• 8

True or False: Earth's layers get more and more dense as they get closer to the center of the Earth.

• True
• False

Which layer do we live on?

• Mantle
• Crust
• outer core
• inner core

The mantle is almost ____ deep

• 5 km
• 800 km
• 3000 km
• 9 km

The outer core is made up of which two metals?

• iron and nickel
• aluminum and copper
• silver and gold
• heavy and speed

Which layer is so hot that it will turn metal to liquid?

• Crust
• mantle
• inner core
• outer core

Metals in the inner core do not become liquid because  . . .

• it is too cold
• there is too much pressure
• it is too dry
• there isn't any metal

Which layer is the inner most layer?

• crust
• mantle
• outer core
• inner core

True or False: The mantle is much thicker than the crust.

• True
• False

This rock was formed when magma cooled very slowly inside the Earth. What specific type of rock is it?

• Foliated Metamorphic Rock
• Clastic Sedimentary Rock
• Extrusive Igneous Rock
• Intrusive Igneous Rock