Layers of Earth

Front

What are the two types of evidence scientists use to learn about Earth's interior?

Back

Rock samples and seismic waves.

Front

What is the difference between the outer core and inner core?

Back

The outer core is a liquid and the inner core is a solid.

Front

Which layer of Earth has the highest pressure?

Back

Inner Core.

Front

Which layer of Earth has convection currents caused by temperature and density differences?

Back

Mantle.

Front

True or False: The Earth consists of 4 main layers.

Back

True.

Front

What are the four main layers of the Earth?

Back

Crust, Mantle, Outer Core, Inner Core.

Front

What is the composition of the Earth's inner core?

Back

Primarily iron and nickel.

Front

What is the state of matter of the outer core?

Back

Liquid.

Front

What is the state of matter of the mantle?

Back

Solid, but behaves like a viscous fluid over long periods.

Front

What is the Earth's crust?

Back

The outermost layer of the Earth, composed of solid rock.