Earth Science Quiz

What is the Earth's outermost layer called?

• Mantle

• Crust

• Core

• Inner core

Which gas is the most abundant in the Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Argon

How long does it take for the Earth to complete one rotation on its axis?

• 24 hours

• 365 days

• 12 hours

• 30 days

What is the Earth's largest ocean?

• Atlantic Ocean

• Indian Ocean

• Southern Ocean

• Pacific Ocean

What is the term for the boundary where two tectonic plates meet?

• Epicenter

• Fault line

• Convergent zone

• Plate margin

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

• Inner core

• Outer core

• Mantle

• Crust

Which of the following is NOT a type of rock found on Earth?

• Igneous

• Sedimentary

• Metamorphic

• Metallic

What is the name of the supercontinent that existed around 300 million years ago?

• Gondwana

• Pangaea

• Laurasia

• Eurasia

The Earth's axis is tilted by how many degrees?

• 0 degrees

• 23.5 degrees

• 45 degrees

• 90 degrees

What is the term for the point on Earth's surface directly above an earthquake's origin?

• Focus

• Seismic zone

• Epicenter

• Fault