Do You Know?: Space and Sky

7,Why is the sky blue? How do astronauts breathe in space? What is a lunar eclipse? The Do You Know?(TM) books provide an in-depth look at a wide range of popular subjects. Appealing to children who want to know everything, each thought-provoking book features: - 80 pages of informative content and answers to many popular questions- Hundreds of labeled, full-color illustrations- An index to key terms- And a More to Know section that motivates children to explore further Fans of Do You Know?(TM) Space and Sky will also enjoy other books in the series, including Dinosaurs and the Prehistoric World, Oceans and Marine Life, and Vehicles and Transportation. - Great family and classroom read-aloud book- Educational books for kids 5 to 8- Nonfiction books for kids An indispensable resource for any child's library!