Earth's Layers

Front

What are the layers of the Earth?

Back

The Earth is composed of four main layers: the crust, mantle, outer core, and inner core.

Front

What is the outermost layer of the Earth called?

Back

The outermost layer of the Earth is called the crust.

Front

What is the mantle?

Back

The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock.

Front

What is the difference between primary waves and secondary waves?

Back

Primary waves (P-waves) are faster and can travel through solids and liquids, while secondary waves (S-waves) are slower and can only travel through solids.

Front

What is the state of matter of the inner core?

Back

The inner core is solid due to the immense pressure despite the high temperatures.

Tags

NGSS.HS-ESS2-3

Front

What is the outer core made of?

Back

The outer core is composed of liquid iron and nickel.

Tags

NGSS.MS-PS1-1

Front

How does the Earth's core contribute to its magnetic field?

Back

The movement of molten iron in the outer core generates electric currents, which produce the Earth's magnetic field.

Tags

NGSS.HS-PS2-5

Front

What is the most dense layer of the Earth?

Back

The inner core is the most dense layer of the Earth.

Front

What are seismic waves?

Back

Seismic waves are waves of energy that travel through the Earth, typically as a result of earthquakes.

Tags

NGSS.MS-ESS3-2

Front

What is the role of pressure in the Earth's layers?

Back

Pressure increases with depth in the Earth, affecting the state of matter of the materials in the layers.