Why is the sky blue? Why do I have to sleep? Why do birds sing? Why do I have to go to the toilet? A walk in the park, taking a bath, helping mum in the kitchen… with all activities a child asks a thousand and one questions. In this first question and answer book many mysteries are unravelled in a clear and simple way. Your child will learn all about the how and why of what happens at home, in nature, in the supermarket or on the farm. Catherine Ripley is an expert in answering children's questions. When she worked as an editor of a children's magazine, she started collecting questions from young readers. She visited schools and libraries and has dedicated herself to making science fun and understandable for children. Catherine has written several successful children's books.