What is the correct order (starting from the surface) of Earth's layers?

• mantle, outer core, inner core, crust
• inner core, outer core, mantle, crust
• crust, mantle, outer core, inner core

What is the crust made of?

• hydrogen and helium
• silicon and oxygen (silicates)
• calcium and hydrogen

The crust on land is called the ______.

• Oceanic Crust
• Upper Mantle
• Continental Crust

Where is the Earth's crust the thickest?

• Mountains
• Ocean
• Equator

Which layer is the easiest to drill through?

• Core
• Crust
• Mantle

What are the 3 layers of the Mantle

• lithosphere, asthenosphere, mesosphere
• basalt, granite, igneous
• crust, mantle, core

What layer of the mantle has convection currents?

• Lithosphere
• Asthenosphere
• Mesosphere

Earth's inner core is

• a solid ball
• a layer of liquid
• a layer of hot rock

What layer of the earth is made of liquid iron & nickel?

• Outer core
• Crust
• Inner core

The crust and the uppermost mantle make up the solid layer of hard rock called the

• Mesosphere
• Lithosphere
• Asthenosphere