Do You Know?: Space and Sky

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 the Do You Know?TM: Space and Sky will also enjoy other books in the series, including Dinosaurs and the Prehistoric World, O