Why does the earth spin? How is a rainbow formed? Feed the flame of curiosity in your child, and find out the answers to some of those ageold questions about how the world works. Contents: Why is the Sky Blue? Why is the Ocean Blue? Why is the Ocean Salty? Why Do We Yawn? Why Do We Hiccup? Why Do People Blush? Why Do We Dream? Why Do Cats Purr? Why Does Ice Float? Why Does Hair Turn Gray? Why are Manhole Covers Round? Why Does the Earth Spin? Why is There a Leap Year? How is Honey Made? How is Glass Made? How is a Pearl Formed? How is A Star Born? Why Does It Rain?