Kids will explore an exciting energy resource with Biofuel Energy. This book covers one of Earth's energy resources, including where it comes from, how we develop and use it, and how it helps power the world. Bright, full-page photos fill the books, while easy-to-read text introduces young readers to key STEM concepts. Aligned to Common Core Standards and correlated to state standards. Applied to STEM Concepts of Learning Principles. Sandcastle is an imprint of Abdo Publishing, a division of ABDO.