Layers of the earth

Front

What are the layers of the Earth?

Back

The Earth has four main layers: the Crust, Mantle, Outer Core, and Inner Core.

Front

What is the Crust?

Back

The Crust is the outermost layer of the Earth, where we live. It is made of solid rock.

Front

What is the Mantle?

Back

The Mantle is the middle layer of the Earth, made up of magma and hardened rock.

Front

What is the Outer Core?

Back

The Outer Core surrounds the Inner Core and is made of liquid metal (nickel and iron). It creates Earth's magnetic field.

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3

Front

What is the Inner Core?

Back

The Inner Core is the innermost layer of the Earth, made of solid metal (nickel and iron) and is extremely hot.

Front

How do scientists know that the layers of the Earth exist?

Back

Scientists know about the layers of the Earth through seismic waves generated by earthquakes.

Front

What is the temperature of the Inner Core?

Back

The temperature of the Inner Core can reach up to 9,000 degrees Fahrenheit.

Tags

NGSS.MS-PS1-4

Front

What is the main component of the Outer Core?

Back

The Outer Core is primarily made of liquid nickel and iron.

Tags

NGSS.MS-PS1-1

Front

What role does the Outer Core play in Earth's magnetic field?

Back

The movement of liquid metal in the Outer Core generates Earth's magnetic field.

Tags

NGSS.HS-ESS2-3

Front

What is magma?

Back

Magma is molten rock found beneath the Earth's surface, which can solidify to form igneous rock.

Tags

NGSS.MS-ESS2-1