Silicon is the second most abundant element in the earth's crust and it is estimated to be the seventh most plentiful element in the universe. Perhaps best known for its role in technology (it's how Silicon Valley got its name), silicon is present in everything from clay, aluminum, bricks, and glass to plastics and contact lenses to cosmetics and toiletries. This is a comprehensive look at silicon, including its history, properties, compounds, and uses and with accessible language, vivid images, and step-by-step experiments, readers will gain an in-depth look at this extremely useful element.