This book is part of a book series called Penguin Core Concepts .

This book has been graded for interest at 3-5 years.

There are 32 pages in this book. This book was published 2014 by Penguin Putnam Inc .

Floor Bal is an award-winning science journalist. She is based in the Netherlands. Sebastiaan Van Doninck is an award-winning illustrator from Belgium. His clients include Penguin Random House, Thames & Hudson and Usborne Publishing. He is the illustrator of several picture books and the winner of Belgium's 2015 Picturale Prize for the best Flemish illustrator.