Earth Layers Quiz

What is the outermost layer of the Earth called?

• Mantle

• Outer core

• Crust

• Inner core

Which layer of the Earth is composed mostly of solid rock?

• Crust

• Mantle

• Outer core

• Inner core

The Earth's outer core is primarily made up of which two metals?

• Iron and Nickel

• Iron and Silver

• Copper and Tin

• Nickel and Copper

What state of matter is the Earth's outer core?

• Solid

• Liquid

• Gas

• Plasma

How thick is the Earth's crust approximately?

• 5-10 km

• 30-50 km

• 100-150 km

• 500-600 km

What is the main characteristic that differentiates the Earth's inner core from its outer core?

• Composition

• Temperature

• State of matter

• Thickness

Which layer of the Earth is the thickest?

• Crust

• Mantle

• Outer core

• Inner core

What is the estimated temperature range at the boundary of the Earth's inner core?

• 1,000-2,000°C

• 3,000-4,500°C

• 5,000-6,000°C

• 9,000-12,000°C

The Earth's crust is divided into how many major tectonic plates?

• 5

• 7

• 12

• 15

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

• Crust

• Mantle

• Outer core

• Inner core