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What Are the Layers of the Earth?
What’s inside the earth? Create a craft or bake a cake that will help you dig deep into the mysteries of the earth’s interior.
First, it’s time for a short geology lesson. The earth has four layers. The top layer is the one we live on, and it’s called the crust. The crust is like the crunchy outside of a loaf of bread, except that your bread probably doesn’t have trees living on it. The crust is made out of lighter rocks such as granite. All of the rocks, streams, mountains, and beaches where we see rocks are all part of the crust. The crust is fairly small when it’s compared to the other layers of the earth. It’s only 3 to 5 miles deep under the oceans and about 25 miles deep on land. The earth’s crust is not a smooth coating on the earth, but it’s made out of plates that move around. When the plates move against each other, it causes earthquakes.
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