Earth's Layers and Plate Tectonics

What is the correct order of Earth's layers based on the chemical components (mechanical composition)?

• lithosphere, asthenosphere, mesosphere, outer core, inner core

• crust, mantle, core

What is the correct order of Earth's layers based on the physical components?

• crust, mantle, core

• lithosphere, asthenosphere, mesosphere, outer core, inner core

In what layer of Earth do we find the tectonic plates? Hint: the first layer of Earth.

• outer core

• inner core

• mantle

• crust

Tags

NGSS.MS-ESS2-3

Which layer of Earth contains the convection currents that heat up and cool down making Earth's tectonic plates move?

• mantle

• inner core

• crust

• outer core

Tags

NGSS.MS-ESS2-1

Which layer of Earth is mainly made of basalt and granite (rocks)?

• inner core

• crust

• mantle

• outer core

Which layer of Earth is mainly made of magma?

• outer core

• crust

• mantle

• inner core

What is very unique about the outer core?

• It is liquid nickel and iron

• It is solid liquid and iron

Which layer of Earth is solid iron and nickel?

• outer core

• inner core

• mantle

• crust

Which layer of Earth is the least dense (meaning the thinnest)?

• outer core

• inner core

• crust

• mantle

How does density affect the layers of Earth?

• the more dense layers are closer to the middle of Earth and less dense layers are on the outside.

• the more dense layers are closer to the outside of Earth and the less dense layers are closer to the middle.