INTERIOR OF THE EARTH

The outer core is believed to be liquid. What is the evidence behind this inference?

• Its so hot, it must be liquid

• We have drilled down and observed the liquid state

• S waves (seismic waves) cannot pass thorugh the liquid zone

• The entire interior of the Earth is solid

Tags

NGSS.HS-ESS2-1

Scientists believe the outer and inner core are composed of iron and nickel. What scientific principal would have caused those metals to sink towards the center of the Earth?

• How big the metals are

• How dense the metals are

• How shiny the metals are

• How hard the metals are

Tags

NGSS.MS-PS2-4

The inner core is believed to solid. How can this be if the inner core is deeper in the Earth than the outer core? Isn't it hotter the deeper you travel?

• No, it is cooler the deeper you travel

• The temperature is the same. It does not change

• Both cores are liquid

• The pressure is so great, it will not allow the inner core to melt

Tags

NGSS.MS-PS1-4

As an observer travels deeper into the planet, the density of the layers will...

• Increase

• Decrease

As an observer travels deeper into the planet, the temperature of the layers will...

• Increase

• Decrease

Tags

NGSS.MS-PS3-4

As an observer travels deeper into the planet, the pressure of the layers will...

• Increase

• Decrease

What 2 layers make up the lithosphere?

• Rigid Mantle and Asthenosphere

• The Outer Core and Stiffer Mantle

• The Crust and Rigid Mantle

• The Crust and Asthenosphere

Which of the following places the "Mantles" in order from lowest density to highest density?

• Stiffer, Plastic, Rigid

• Rigid, Stiffer, Plastic

• Plastic, Rigid, Stiffer

• Rigid, Plastic, Stiffer

What Earth layer is said to be "plastic"

• Crust

• Lithosphere

• Stiffer Mantle

• Asthenosphere

What Earth layer has convection cells?

• Lithosphere

• Rigid Mantle

• Stiffer Mantle

• Plastic Mantle