BrainPop Earth's Structure Quiz

What are earth's three main layers?

• Core, mantle, and surface

• Core, mantle, and crust

• Inner core, outer core, and crust

• Upper mantle, lower mantle, and crust

What do earthquake waves have in common with other waves?

• They travel at the same speed as light waves.

• They carry the same amount of energy as sound waves.

• They bend when they travel throughout different materials.

• They have the same wavelength as radio waves.

Where is the earth's crust the thickest?

• 
• 
• 
• 

Which word best characterizes the lower mantle?

• Scalding

• Cool

• Molten

• Lukewarm

How deep would you have to drill to reach the center of the earth?

• About 600 kilometers.

• About 6,000 kilometers.

• About 60,000 kilometers.

• About 600,000 kilometers.

What effect does the spinning of the earth's core have

• It increases the gravity.

• It makes your teacher taller.

• It creates matter.

• It creates the magnetic field.

Which of the following statements about the Earth's inner core is true?

• It's mostly made of iron.

• It's mostly made of nickel.

• It's mostly made of cadmium.

• It's mostly made of magnesium.

What is the only entirely liquid layer of the earth?

• The outer core.

• The inner core.

• The upper mantle.

• The lower mantle

Which of the following statements is an opinion about the mantle?

• It makes up the bulk of the Earth's mass.

• Heat churns through it.

• It contains iron, nickel, magnesium, and oxygen.

• It's the most important layer of the Earth.

If the earth's mantle were completely solid, ____ plates could not move around.

• Titanic

• Technical

• Tectonic

• Teutonic