Earth’s Interior

Multiple Choice

Which layer of Earth is the hottest?

• Inner core
• Crust
• Mantle
• Outer core

Multiple Choice

What is the state of matter in the outer core?

• Plasma
• Liquid
• Gas
• Solid

Multiple Choice

Which evidence helps scientists learn about Earth’s interior?

• Ocean currents
• Surface temperature
• Magnetic fields
• Seismic waves

Fill in the Blanks

The Earth's

is the hottest layer and is made of solid metal.

Fill in the Blanks

The

is the outermost solid layer of the Earth where we live.

Fill in the Blanks

The

is a layer made of hot, semi-solid rock where convection currents occur.

Fill in the Blanks

The

core is made of liquid metal, mostly iron and nickel.