Getting to Know: Structure of the Earth

Which layer of Earth do we live on?

• Mantle

• Crust

• Outer core

• Inner core

What is the mantle made of?

• Cold, solid rock

• Hot, molten rock

• Water and sand

• Ice and gas

Which statement best describes Earth’s crust compared to Earth’s overall size?

• It is very thick.

• It is thin, like an eggshell.

• It is thicker than the mantle.

• It is the same thickness everywhere.

According to the text, how thick is the continental crust?

• 5–10 kilometers

• 10–20 kilometers

• 30–50 kilometers

• 100–200 kilometers

How thick is the oceanic crust mentioned in the text?

• 5–10 kilometers

• 30–50 kilometers

• 60–80 kilometers

• 100–120 kilometers

Which layer is described as the densest of Earth’s layers?

• Crust

• Mantle

• Inner core

• Outer core

What is the state of matter of the outer core?

• Solid

• Liquid

• Gas

• Plasma

What metal is mentioned as being in the core besides iron?

• Copper

• Nickel

• Gold

• Aluminum

Which layer is the thickest within Earth’s crust according to the text?

• Crust

• Mantle

• Outer core

• Inner core

What do scientists use a cross-section drawing of Earth to help us understand?

• Weather patterns

• Different layers of Earth

• Life in the ocean

• Stars

Tags

NGSS.MS-ESS1-4