Composition of the Earth

Multiple Choice

Which of these layers is the largest?

• lithosphere
• asthenosphere
• outer core
• mantle

Multiple Choice

Which layer of the Earth is the most dense?

• Crust
• Inner core
• Mantle
• Outer core

Multiple Choice

Which layer of the Earth is the least dense?

• Crust
• Inner core
• Mantle
• Outer core

Multiple Choice

What is the importance of the Earth magnetic field?

• protects us from the damage that the solar wind can cause

• protects us from pollution

• protects us from lasers

• protects us from the damage that the moon can cause

Multiple Choice

continental crust

• the layer that extends from below the mantle to the center of the Earth

• the thinner crust that lies under the ocean

• the 5 physical properties of the layers of the Earth

• the thicker crust that is land

Multiple Choice

seismic waves

• dense center of the Earth

• vibrations through the Earth that happen when there is an earthquake

• a machine that measures the times at which seismic waves arrive at different distances from an earthquake

• pieces of lithosphere that move around on top of the asthenosphere