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- 1. Multiple Choice
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
- 2. Multiple Choice
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.
- 3. Multiple Choice
Where is the earth's crust the thickest?
- 4. Multiple Choice
Which word best characterizes the lower mantle?
Scalding
Cool
Molten
Lukewarm
- 5. Multiple Choice
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.
- 6. Multiple Choice
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.
- 7. Multiple Choice
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.
- 8. Multiple Choice
What is the only entirely liquid layer of the earth?
The outer core.
The inner core.
The upper mantle.
The lower mantle
- 9. Multiple Choice
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.
- 10. Multiple Choice
If the earth's mantle were completely solid, ____ plates could not move around.
Titanic
Technical
Tectonic
Teutonic
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