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Solids, liquids, and gases are the three states of matter. But have you ever made matter change from one state to another? Or seen how even invisible matter takes up space? Now you can Explore matter with the fun experiments you'll find in this book. As part of the Searchlight Books(TM) collection, this series sheds light on a key science question―How Does Energy Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer

Sally M. Walker has been a children's book writer for over 20 years. Most of her books are nonfiction and present various science topics to young readers. Fossil Fish Found Alive is the story of the hunt for the elusive fish called the coelacanth. Sally also enjoys combining science investigation with historical topics. Her book Secrets of a Civil War Submarine, which won the 2006 Robert F. Sibert Medal, tells about the history, loss, and re-discovery of the first submarine to sink an enemy ship in battle. Written in Bone: Buried Lives of Jamestown and Colonial Maryland takes readers on archaeological expeditions, where the forensic analysis of colonial settlers' bones helps us to understand their lives. Sally especially enjoys writing narrative nonfiction that captures the reader's attention with a true story. She is also the author of 2019 Orbis Pictus Honor Book Champion: The Comeback Tale of the American Chestnut.