Earth Structures: Layers of the Earth and Plate Tectonics

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• core

What is the thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle
• mantle, outer core, inner core, crust
• crust, mantle, outer core, inner core
• outer core, inner core, crust, mantle

Tags

NGSS.MS-ESS2-3

What layer is a semisolid and acts like a plastic?

• Lithosphere
• Mantle
• Asthenosphere
• crust

What happens to pressure as we move from the crust to the inner core?

• Pressure Decreases
• Pressure Increases
• Nothing

Tags

NGSS.HS-ESS2-3

Which of these layers is ALL solid iron and nickle?

• inner core
• outer core
• lithosphere
• mesosphere

Which of the following occurs because of convection currents?

• Tectonic plates on the crust move.
• The mantle increases in size.
• Pressure in the crust increases.
• Pressure in the crust decreases.

Tags

NGSS.MS-ESS2-1

As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?

• They would all increase

• They would all decrease.

• They would stay the same.

• Temperature would decrease, but pressure and density would increase.

The mantle of Earth is made partly of magma. When magma rises and sinks, this is called ______________. 

• a conduction current
• a hot spot
• a volcanic eruption
• a convection current

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-4

Where does the heat come from that drives this convection current in the mantle? 

• The sun
• The crust
• the mantle
• the core

Tags

NGSS.MS-ESS2-1