Earth's Crust Quiz

What is the composition of Earth's crust?

• Rock

• Mantle

• Core

• Water

Which type of crust is thinner and denser?

• Oceanic crust

• Continental crust

• Both are equal

• None of the above

What is the average thickness of continental crust?

• 5 kilometers

• 12 kilometers

• 35 kilometers

• 22 kilometers

Which type of crust is mainly made of basalt?

• Oceanic crust

• Continental crust

• Both are made of basalt

• None of the above

What is the density of oceanic crust?

• 2.7 g/cm3

• 3.0 g/cm3

• 2.5 g/cm3

• 3.5 g/cm3

Tags

NGSS.MS-ESS2-1

Which type of crust is lighter in color?

• Oceanic crust

• Continental crust

• Both have the same color

• None of the above

What is the average density of continental crust?

• 2.7 g/cm3

• 3.0 g/cm3

• 2.5 g/cm3

• 3.5 g/cm3

What is the main rock type found in continental crust?

• Granite

• Basalt

• Gabbro

• Sedimentary rock

What is the thickness range of oceanic crust?

• 5 to 12 kilometers

• 12 to 20 kilometers

• 20 to 30 kilometers

• 30 to 40 kilometers

Which layer of Earth is the crust?

• Outermost layer

• Middle layer

• Innermost layer

• None of the above