"Learn about light in this easy-to-read book. Simple text, colorful photos, and diagrams explain how light comes from a source, how it moves, and what is happening when you see reflection or refraction. Light waves and frequency also featured. Fun facts about light scattered throughout. Word matching game, comprehension questions, glossary, and index included. Contains the science concepts and vocabulary students need to know in grades 3 to 5. Correlates to NSTA's Science Standards"-- Provided by publisher.