Book excerpt: A brand new edition of The Rock Factory from the Science Works series, featuring lively storytelling and fun, engaging illustrations to aid children in their learning. Deep down underground the Earth's rock factory is mixing and melting, and squeezing and stirring, and baking and making rocks. In this revised edition from Jacqui Bailey, The Rock Factory tells the story of how a special sort of stone formed deep inside the Earth, and came to the surface thousands of millions of years later. The Rock Factory looks at how minerals turn into rock crystals, how the Earth is structured and how volcanoes happen. This book also contains an experiment, useful websites and an index. Book band: Lime Ideal for KS2.