Earth Systems Test Review

Below the mantle lies the liquid____________ which is about 2200km thick

• outer core

• inner core

The outer core is made up of ______ iron nickel and gas.

• liguid

• solid

• gaseous

The outer core is __________.

• molten metal

• molten gas

• molten iron

• solid metal

The outer core is denser than the ___________.

• crust and mantle

• mantle and inner core

• crust and inner core

The outer core is not as dense as the ________.

• inner core

• mantle

• crust

At the center of the earth is the soiid ________.

• inner core

• outer core

• mantle

• crust

The __________ is about 2200 km thick.

• inner core

• outer core

• mantle

• crust

Under great pressure, the inner core is made up of ______ iron and nickel.

• solid

• liquid

• gas

The inner core is the _______ layer on Earth.

• densest

• softest

The ______ inner core is surrounded by the _______ outer core.

• solid, liquid

• solid, gas

• liquid, solid

• liquid, gas