Layers of the Earth

Which letter in the diagram identifies the layer of Earth made up of solid nickel and iron?

• layer A

• layer B

• layer C

• layer D

Sally is researching the differences that exist in each layer of the Earth. Which of the following best describes Earth's crust?

• Solid, rocky

• Liquid, metallic

• Semisolid, convecting

• Dense, extremely hot

The layers of Earth are the crust, mantle, and care, with the core being divided into inner and outer layers. Which of the following does NOT describe the layers of the solid Earth?

• The core makes up the majority of Earth's volume.

• The mantle is composed of rocks known as silicates.

• The core is made up of dense elements, such as iron and nickel

• The crust is extremely thin when compared to the core or mantle.

Which of Earth's layers is best described as liquid metal?

• crust

• mantle

• outer core

• inner core

Which of the following is true regarding the composition of the lithosphere?

• The lithosphere is mostly liquid, with some medium-density materials, such as silicon.

• The lithosphere is more plastic and flows slowly compared to the solid crust of Earth.

• The lithosphere includes the core and the lower portion of the mantle.

• The lithosphere includes the crust and the uppermost portion of the mantle, which is sold and rigid.

The layers of Earth can be classified by their thickness, composition, and state. Which of Earth's layers is best described as a molten state of medium density made of mostly silicon and oxygen?

• crust

• outer core

• mantle

• inner core

What letter in the diagram identifies the layer that is composed of moving continental and oceanic plates?

• layer A

• layer B

• layer C

• layer D

What does layer D show?

• upper mantle

• lower mantle

• outer core

• inner core

Which layer of Earth is composed of liquid iron and nickel?

• crust

• inner core

• outer core

• mantle

Which of the following correctly lists the layers from innermost to outermost?

• inner core, outer core, lower mantle, upper mantle, crust

• lower mantle, upper mantle, crust, inner core, outer core

• lower mantle, inner core, upper mantle, outer core, crust

• crust, inner core, lower mantle, upper mantle, outer core