Layers of the Earth

Front

What are the main layers of the Earth?

Back

The main layers of the Earth are the Crust, Mantle, Outer Core, and Inner Core.

Front

What is the Earth's Crust?

Back

The Earth's Crust is the outermost layer, composed of solid rock and minerals, and is where we live.

Front

What is the Mantle?

Back

The Mantle is the layer beneath the Crust, made of semi-solid rock that flows slowly over time.

Front

What is the Outer Core?

Back

The Outer Core is a liquid layer composed mainly of iron and nickel, located beneath the Mantle.

Front

What is the Inner Core?

Back

The Inner Core is the innermost layer of the Earth, composed of solid iron and nickel, and is extremely hot.

Front

What is the asthenosphere?

Back

The asthenosphere is a part of the upper Mantle that is solid but can flow slowly, allowing tectonic plates to move.

Front

How does pressure change as you go deeper into the Earth?

Back

Pressure increases as you go deeper into the Earth due to the weight of the overlying materials.

Front

How does temperature change as you go deeper into the Earth?

Back

Temperature generally increases with depth, reaching extremely high temperatures in the Inner Core.

Front

What is the relationship between density and depth in the Earth?

Back

Density increases with depth; the Inner Core is the most dense layer.

Front

What is the composition of the Earth's Inner Core?

Back

The Inner Core is primarily composed of solid iron and nickel.