This book is part of a book series called Science Stories .

This book has been graded for interest at 5-9 years.

There are 32 pages in this book. This book was published 2017 by Big & Small .

JiHyeon Lee is a South Korean artist with degrees in art, design, and illustration. Her first book, Pool , was a New York Times Notable Children's Book of the Year, an NPR Best Book of the Year, and won the Society of Illustrators Gold Medal for Original Art. She lives in Seoul, South Korea.