This informative series explains and illustrates the science of physics and its everyday applications. Physics is concerned with matter, the stuff from which everything is made, and with energy in all its forms. Light and sound are forms of energy, and this book looks at the properties of light, explaining where it comes from, how it travels, and how it is reflected. The book also explores the properties of sound. Diagrams and simple practical experiments provide a perfect introduction to the science of light and sound.