This book has been graded for interest at 5-8 years.

There are 40 pages in this book. This book was published 2014 by Turtleback Books .

Elena Pasquali is the pseudonym of an in-house author. Priscilla Lamont has a degree in graphic design and worked as a book designer before becoming a freelance artist. She has illustrated over 40 children's books for a variety of authors, including Julia Jarman, Michael Rosen, Hilary McKay and sometimes her own work as well! KATHLEEN WEIDNER ZOEHFELD has been a children's books editor and writer for thirty years and have always kept one eye on curriculum needs, especially in science. She has written other books in the National Geographic Kids Readers series including, Dinosaurs and Rocks and Minerals .