Layers of the Earth Quiz

What is the hottest layer of the Earth?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the average thickness of the Earth's crust?

• 5-19 miles

• 20-49 miles

• 50-90 miles

• 100-150 miles

What state of matter is the outer core?

• Solid

• Liquid

• Gas

• Plasma

The Earth's mantle is mostly made up of what?

• Water and ice

• Rocks and minerals

• Iron and nickel

• Magma

What is the temperature range of the inner core?

• 900°F to 1800°F

• 2000°F to 4000°F

• 5000°F to 9000°F

• 9000°F to 13000°F

How thick is the Earth's mantle?

• Approximately 1800 miles

• Approximately 1000 miles

• Approximately 500 miles

• Approximately 3000 miles

What is the primary composition of the Earth's inner core?

• Silicon and magnesium

• Iron and nickel

• Oxygen and silicon

• Carbon and hydrogen

The Earth is classified as a terrestrial planet. What characteristic makes that statement true?

• Having a solid surface

• Being the largest planet in the solar system

• Having an atmosphere

• Being closer to the Sun than gas giants

Which layer of the Earth is responsible for generating its magnetic field?

• Crust

• Mantle

• Outer Core

• Inner Core

What is the approximate diameter of the Earth?

• 2,000 miles

• 4,000 miles

• 6,000 miles

• 8,000 miles