Why in the World Author:Playmore Why do volcanoes erupt? — Who was the first man on the moon? — How does an airplane keep flying? — How can the Hummingbird fly backwards? — Get the Who? What? When? Where? Why? and even How? — This bok of questions and answers is packed with fun facts and challenging activities such as word searches, secret codes, crosswords, and many more! — So, shar... more »pen your pencils and get ready for hours of fun!« less