There are 32 pages in this book. This is a picture book. A picture book uses pictures and text to tell the story. The number of words varies from zero ('wordless') to around 1k over 32 pages. Picture books are typically aimed at young readers (age 3-6) but can also be aimed at older children (7+). This book was published 2009 by Candlewick Press, U. S. .

MARGARET BLACKSTONE writes books about science as well as picture books. She lives in New York City. ELISSA HADEN GUEST is the author of the Iris and Walter easy reader series. She lives in San Francisco, California. Paul Meisel has illustrated many books for children, including Why Are the Ice Caps Melting?, Energy Makes Things Happen, and What Happens to Our Trash? in the Let's-Read-and-Find-Out Science series. He lives in Newtown, Connecticut.