Earth Structure and Layers Practice Quiz

Which layer of the Earth is the thin, solid, outermost layer?

• Mantle

• Core

• Crust

• Outer core

What is the main composition of the Earth's core?

• Water and sand

• Iron and nickel

• Oxygen and nitrogen

• Silicon and aluminum

Which structural layer of the Earth is made of the crust and the uppermost part of the mantle?

• Lithosphere

• Asthenosphere

• Mesosphere

• Inner core

What is the likely cause of Earth's magnetic field?

• Movement of the crust

• Movement of liquid iron in the outer core

• Rotation of the mantle

• Solar winds

Explain how the structure of the Earth contributes to the creation of its magnetic field.

• The crust generates electricity

• The movement of liquid iron in the outer core creates the magnetic field

• The mantle spins faster than the crust

• The lithosphere is magnetic

Why is the Earth not a perfect sphere?

• Because of its mountains

• Due to its spin, which causes it to flatten at the poles and bulge at the equator

• Because of the oceans

• Due to the moon's gravity

Which sphere of Earth includes all the water found in oceans, rivers, lakes, and glaciers?

• Atmosphere

• Biosphere

• Geosphere

• Hydrosphere

Tags

NGSS.MS-ESS2-4

How does the geosphere contribute to the formation of mountain ranges?

• By providing water for rivers

• By pushing up Earth's crust through geological forces

• By creating weather patterns

• By supporting plant life

Tags

NGSS.MS-ESS2-2

Which region is typically found on the dry side of a mountain range?

• Rain shadow region

• Wetland region

• Glacier region

• Forest region

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What is the main substance believed to make up Earth's core?

• rock

• water

• iron and nickel

• gases