Light is everywhere! This book uses real-world examples to bring the concept of light to life in an approachable way. Clearly-written text draws in readers with concrete examples involving familiar, everyday things, from a light switch to the sun. The book covers the history of and key figures in the understanding of light, including Pythagoras, Christian Huygens, James Clerk Maxwell, Albert Einstein, and Thomas Edison. Major concepts covered include visible light, the electromagnetic spectrum, color, solar energy, optics, lasers, and the speed of light. Full-color photos, a glossary, an index, sidebars, primary source documents, and other creative content enhance the book. It also includes prompts and activities that directly engage students in developing the reading, writing, and critical thinking skills promoted by the Common Core standards. This well-researched title has a credentialed content consultant and aligns with Common Core and state standards. Aligned to Common Core Standards and correlated to state standards. Core Library is an imprint of Abdo Publishing, a division of ABDO.