What's Inside Earth? 🤔
Just like an onion, our planet Earth is made up of different **layers**. There are four main layers: the **crust**, the **mantle**, the **outer core**, and the **inner core**.
We live on the very top layer called the **crust**. It's the thinnest layer. Below the crust is the **mantle**, which is the thickest layer and is made of hot, flowing rock. Deeper still is the **outer core**, a liquid layer of very hot metal, and finally, the **inner core**, a solid ball of hot metal at the center of the Earth.
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Video: Exploring the Layers 🎬
Watch a 3D model of the Earth to see each layer!
Practice Problems (What is this layer?)
Read the description and click on the correct layer of Earth.
1) The thinnest, top layer we live on.
2) The thickest layer of hot, flowing rock.
3) The solid ball of metal at the center.
4) The liquid layer of hot metal below the mantle.
⚡ Order the Layers!
Put the layers in order from the outside of Earth to the center.
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Click on the layers in the correct order!
Crust
Mantle
Outer Core
Inner Core
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