Week 4- More Than Just Rock

My first guess to what the middle of the earth was made out of would be rock. Nothing but rock. It seems like the most logical explanation. The land would keep on going the deeper you got. The bottom of the ocean is land so I would assume that it also kept going. The center of the earth being one giant rock would also go along with everyone saying that they can dig to China. So it would make sense to me. It would be awesome if the world was made out of skittles, though. It was hollow and had millions and millions of skittles. Instead of water coming out of geysers skittles would. That would be unbelievably amazing.