Layers of the Earth

Front

What was the name of the single land mass where all continents were once together?

Back

Pangea

Front

What are convection currents based on?

Back

Density differences

Front

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

Back

Crust, lithosphere, asthenosphere, mantle, outer core, inner core

Front

Which layer of the Earth is made mostly of solid iron and nickel?

Back

Inner core

Front

What is the hot semi-solid portion that tectonic plates ride upon?

Back

Asthenosphere

Front

What is the outermost layer of the Earth called?

Back

Crust

Front

What is the layer beneath the crust that is solid and rigid?

Back

Lithosphere

Front

What is the layer of the Earth that is semi-solid and allows tectonic plates to move?

Back

Asthenosphere

Front

What is the layer of the Earth that is liquid and surrounds the inner core?

Back

Outer core

Front

What is the layer of the Earth that is solid and composed of silicate rocks?

Back

Mantle