Earth's Interior & Plate Tectonics

As you go deeper into Earth, what happens to the density and temperature?

• Density Increases, Temperature Decreases

• Density Decreases, Temperature Increases

• Density Increases, Temperature Increases

• Density Decreases, Temperature Decreases

The liquid layer of Earth's interior is the

• Inner Core

• Outer Core

• Mantle

• Crust

Starting from the surface of the Earth and going down, what are the layers of Earth?

• Crust, Mantle, Outer Core, Inner Core

• Inner Core, Outer Core, Mantle, Crust

• Outer Core, Mantle, Crust Inner Core

• Crust, Outer Core, Mantle, Inner Core

What two layers make up the "lithosphere"?

• Crust & Plastic Mantle

• Crust & Rigid Mantle

• Plastic Mantle & Rigid Mantle

• Crust & Stiffer Mantle

If you dig down until the density is 4.9 g/cm³, what layer did you reach?

• Outer Core

• Crust

• Inner Core

• Mantle

How deep have humans been able to dig into the Earth?

• Mantle

• Crust

• Inner Core

• Outer Core

How do we know what Earth's interior looks like?

• By studying earthquakes

• By studying the way the Moon's gravity pulls on each layer

• By pointing an x-ray machine at the ground

• By observing rock samples from each layer

What is the density of the inner core?

• 12.7-13.0 g

• 12.7-13.0 g/cm³

• 12.7-13.0 cm³/g

• 12.7-13.0 cm³

• 12.7-13.0 mL

Why did Earth's interior separate into layers?

• Differences in Mass

• Influence from the Moon's Gravity

• Differences in Density

• Differences in Air Pressure

Compared to continental crust, oceanic crust is

• Thicker and More Dense

• Thinner and More Dense

• Thicker and Less Dense

• Thinner and Less Dense