Book excerpt: Volcanoes, mountains, and earthquakes! Fossils, glaciers, and crystals! Earth science has so many fun topics to explore, and this book is the best place to start understanding geology. Young scientists will learn about the Earth’s layers, understand the forces that change our planet’s surface, and explore how rocks, minerals, and crystals form. For students interested in competing in science fairs, the book contains lots of great suggestions and ideas for further experiments.