| Reprint edition (Candlewick Pr, September 23, 2008), cover price $6.99 | About this edition:
A first science book that introduce young readers to core science concepts through fresh, graphic illustrations, engaging stories, and supplemental activity suggestions.
| New edition (Gardners Books, February 5, 2007), cover price $8.35 | also contains Oscar and the Moth: A Book About Light and Dark
| About this edition:
Oscar is an adorably naive, googly-eyed kitten, filled with curiosity and wonder about his natural surroundings.