Materials make us nearly everything we interact with daily. Some materials, such as plastics, are made and used for specific purposes. Others, such as wood, need to be changed from their original state to be used. Learn how materials come in many forms, but primarily solid, liquid, or gas. Through this beginner's guide to materials, readers will discover important facts about different types of materials. Told by Snappy the Nile crocodile, readers are posed questions to help them engage with the text.