Earth's Layers, Plate Tectonics, and Waves

Which layer of the earth is rock made mostly of iron and nickel?

• Lithosphere
• Core
• Asthenosphere
• Mantle

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

• 1
• 2
• 3
• 4

Why is the Inner Core solid?

• Low Heat
• High Pressure
• All the layers are solid
• It's made of rock

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

• asthenosphere
• lithosphere
• mesosphere
• continental crust

Is the outer core a liquid or solid?

• liquid
• solid

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

• Mantle
• Innercore
• Outercore
• Crust

A dense ball of solid iron and nickel is which layer?

• 1
• 2
• 3
• 4

Which layer of Earth is characterized by rock that is plastic, or soft enough to flow and contains the convection currents?

• asthenosphere
• crust
• lithosphere
• inner core

Which of the following causes Earth's tectonic plates to move?

• Energy from the Sun
• Magnetic Pole Reversal
• Convection currents in the asthenosphere
• Faults in Mountain Ranges

What type of plate boundary is this?

• Plate
• Divergent
• Convergent
• Transform