Linking to a popular feature in the super successful National Geographic Little Kids magazine, this book brings the browsable fun of the bestselling National Geographic Kids Almanac to a new audience: preschoolers Using an interactive question-and-answer format and content grounded in a child's immediate world, the Big Book of Why delivers lively information, hands-on games, simple recipes, crafts, and more. What makes a car go? How does mushy dough become a crispy cookie? What does the doctor see in my throat? An essential parent reference, The Big Book of Why invites children to ask big questions, think big thoughts, and get answers that are accurate, engaging, level-appropriate, and based on sound educational findings. It helps prepare preschoolers for school in an interactive way--the very best way to foster learning at this age, according to research. Highly photographic and playful, this big book is an adventure in exploration.