Earth Layers

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

• A

• B

• C

• D

How many layers does Earth have based on PHYSICAL PROPERTIES

• 3

• 4

• 3.5

• 5

Which of Earth’s layers is best described as a molten state of medium density made up of mostly silicon and oxygen?

• inner core

• mantle

• lithosphere

• outer core

What is the chemical composition of Earth's core?

• nickel and magnesium

• aluminum and magnesium

• iron and nickel

• aluminum and iron

How many different layers does Earth have based on CHEMICAL COMPOSITION?

• 3

• 4

• 5

• 4.5

Which Earth layer has plasticity?

• mantle

• outer core

• asthenosphere

• lithosphere

Which of the following does NOT describe the layers of the solid Earth?

• The mantle is composed of rocks known as silicates.

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

• 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 these best describes the composition of Earths crust?

• Liquid

• Metallic

• Gaseous

• Rocky

The densest layer, composed of solid iron

• outer core

• mantle

• lithosphere

• inner core

The ____________ is composed of iron and nickel in a liquid state.

• outer core

• inner core

• mantle

• lithosphere