Earth's Compositional Layers

High temperatures inside Earth are from?

• Melted rock

• Fossils

• Soil

• Minerals

The Earth's mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again, constantly repeating the cycle. This action, which causes the Earth's crust to move is known as?

• Convection currents

• Magnetic fields

• Hot spots

• Advection forces

Tags

NGSS.MS-ESS2-1

Which layer of Earth is liquid iron with little nickel?

• inner core

• outer core

• mantle

• crust

Which compositional layer has the most mass?

• crust

• mantle

• core

Which compositional layer of Earth does convection occur?

• core

• crust

• mantle

• mesosphere

Which layer of Earth is mostly made of silicon, oxygen, and aluminum?

• inner core

• mantle

• core

• crust

Which layer of Earth has more magnesium than aluminum?

• crust

• mantle

• core

What happens to temperature as you move from the crust to the core?

• temperature increases

• temperature decreases

• temperature does not change

• temperature increases then decreases

Which layer of the Earth is broken into tectonic plates?

• Asthenosphere

• Mesosphere

• Lithosphere

• Crust

Tags

NGSS.MS-ESS2-3

Which layer of Earth do the tectonic plates float on?

• LIthosphere

• Asthenosphere

• Mesosphere

• Hydrosphere