Layers of the Earth Quiz

What is the outer layer of the Earth called?

• Mantle

• Outer Core

• Crust

• Inner Core

How thick is the Earth's crust on land?

• 25 miles

• 3 miles

• 5 miles

• 50 miles

What is the mantle made of?

• Liquid iron and nickel

• Hot liquid iron and nickel

• Solid rock and minerals

• Slightly different silicate rocks with more iron and magnesium

What are tectonic plates a combination of?

• Mantle and crust

• Crust and liquid iron

• Mantle and inner core

• Inner core and outer core

What does the outer core create around the Earth?

• Atmosphere

• Ozone layer

• Protective barrier from asteroids

• Magnetic field

What is the Earth's inner core made of?

• Solid iron and nickel

• Liquid iron and nickel

• Slightly different silicate rocks with more iron and magnesium

• Hot liquid iron and nickel

What is the main function of the Earth's outer core?

• Shield from solar wind

• Create a magnetic field

• Create earthquakes

• Generate heat for the Earth

What is the thickness of the Earth's outer core?

• 1400 miles

• 1900 miles

• 2500 miles

• 3000 miles

What percentage of the Earth's weight does the mantle make up?

• 85%

• 50%

• 75%

• 65%