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What's inside the earth?

Our Science topic is all about rocks, we have been looking at what is inside the Earth.

We were surprised to find out that there are lots of different layers that make up the Earth and that the part we live on, the crust , is only a relatively thin layer.  We compared the structure of Earth to the layers in a hard boiled egg!

Have a look at this video clip which shows how far humans have dug.  Did you know that from the deepest point that humans have dug to it  would  still take another 60,000 feet to reach the end of the crust and another 21 million feet to the center of the Earth. Better get digging!