The What? Where? Why? series was designed both to answer common kid questions and to ask some questions of its own. Pathways across each page lead young readers through illustrated and easy-to-understand responses to inquiries about plants, food, solar system, weather, and more. A short quiz at the end of each pathway invites readers to show what they know and cleverly leads them to the next question. Find out what clouds are made of, why it rains and snows, what causes thunder and lightning, how strong the wind can blow, and much, much more!