Young readers can learn fascinating facts about volcanic eruptions, different types of rocks, fossils, minerals, and gemstones in This vibrant book is full of interesting information, fascinating photographs, and colorful illustrations. There are lots of amazing facts to discover, such as what happens inside a volcano before it erupts, how different types of rocks are formed, the use of different minerals, and much more. The specially commissioned illustrations and stunning photographs help children understand each topic and provide hours of fun.