What I Learned

I learned that the center of the earth is 1500 degrees and made of solid iron.
Its very hot, but still not as hot as the surface of the sun-5500 degrees!
I also learned that the mantle is only 300 degrees cooler and despite how thin the crust is compared to the rest of the Earth, its thick enough to hold thousands of tons of water and people!

I would like to learn about how crystals grow and how rock and minerals create gold