Well, I learned this from science, so hope it's good! And if you don't know whats happing, the valcano is urrupting, then the hot lava is cooling off. Once the lava cools off it makes the valcano, grow! So now you know valcano's are made of dryed lava!
This took me about 1 hour to make! (And don't mind my spelling mistakes, I know I made a lot of them, but I'm too lazy to correct them right now.)
