Earth Core

Which layer of Earth is located above the outer core?

• crust
• inner core
• mantle
• lithosphere

Which of these two layers is a solid?

• innercore
• Outercore

What is the top layer of the Earth's surface called? 

• Mantle
• Innercore
• Outercore
• Crust

A dense ball of solid iron and nickel.

• crust
• inner core
• mantle 
• outer core

What part of the earth is a layer of rock that comprises 67% of Earth’s mass?

• mesosphere
• mantle
• asthenosphere
• lithosphere

What is the rigid layer of the Earth's surface made up of the  crust and upper mantle called?

• asthenosphere
• lithosphere
• mesosphere
• continental crust

How have scientists been able to study Earth's mantle?

• In some places, Earth's crust thins enough to see mantle.

• Earth's surface heat warms the crust turning it into mantle.

• Cooling crust material becomes mantle over time.

• In some places, mantle rock pushes to Earth's surface.

Which layer of Earth is characterized by rock that is plastic, or soft enough to flow?

• asthenosphere
• crust
• lithosphere
• inner core

Is the outer core a liquid or solid?

• liquid
• solid

How many layers of the Earth's CORE are there?

• one
• two
• three
• four