Quiz on Earth's Structure

What is the outermost layer of the Earth?

• Mantle

• Crust

• Inner Core

• Outer Core

Which type of crust forms the large land masses?

• Oceanic Crust

• Continental Crust

• Both A and B

• None of the above

What is the approximate thickness range of the Earth's crust?

• 0-10 kilometers

• 6-70 kilometers

• 100-200 kilometers

• 500-600 kilometers

Which layer of the Earth is the thickest?

• Crust

• Outer Core

• Inner Core

• Mantle

What causes convection currents in the mantle?

• The cold temperature of the crust

• Heat from the core

• Ocean tides

• Earth's rotation

What is the composition of oceanic crust primarily made of?

• Granite

• Basalt

• Sandstone

• Limestone

What is the temperature range of the outer core?

• 0-1000 degrees Celsius

• 1000-2000 degrees Celsius

• 4000-5000 degrees Celsius

• 6000-7000 degrees Celsius

How do scientists study the internal structure of the Earth?

• By drilling deep into the Earth

• By observing seismic waves from earthquakes

• By studying surface rocks

• All of the above

What keeps the inner core solid despite its high temperature?

• Low density

• High pressure

• Its composition

• Cooling from the mantle

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

• Crust

• Mantle

• Outer Core

• Inner Core