Read this article. There are a lot of ads on the page, just scroll down :)
After reading the article, answer the following questions in your blog:
1. How deep is the deepest mine in the world?
2. How deep would you have to dig to reach the mantle?
3. Let's pretend that you and your friends tried to dig a hole in your backyard to find a shortcut to China. The thing is, you guys had special suits that could withstand extreme temperatures, so you would not die. If you were somehow able to reach the mantle, what would it look like? What kinds of things would you see? How about the outer core? Inner core? What would it look like as you approached the surface (the crust) on the other side?
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