Explore physics in this early introduction to the states of matter, starring a goofy dog and his all-too-human family.

Zippy art and clear explanations introduce the basic characteristics of four states of matter and how they change from one state to another. Totally up-to-date, this book for elementary school children includes plasma, now covered in all curricula.

Straightforward text presents the facts and Raff's infographic illustrations demonstrate the science and tell a humorous story. There are hands-on activities, such as using a chocolate bar to demonstrate material consistency and using a balloon to prove gases have weight, to reinforce the learning. A glossary defines density, plasma, vapor, and more essential terms. "Adler . . . combines simply phrased explanations and demonstrations using measuring cups, balloons, and other common materials to make the differences between each classical state of matter easy to comprehend. . . . Raff’s bright cartoon illustrations add clarifying details and humor. . . . [An] engaging first look at the various states of matter, supported by hands-on components that are accessible to even the youngest experimental scientists"—School Library Journal

"Simple experiments and kid-friendly language teach concepts about matter to young audiences. . . . delivers scientific information alongside eye-catching illustrations with details that will delight."—Kirkus Reviews

"Overall, a useful addition to the science shelves."— Booklist

"In preparation for Grandma’s birthday celebration, twin siblings clean up their accumulated mess while Dad struggles with dinner, a scenario that ably launches Adler’s discussion of states of matter, anchoring it to readily observable matter around the house. . . . A brief glossary rounds out this title, readaloud- and discussion-ready for primary science classes." —The Bulletin of the Center for Children's Books