Chemical processes have always been part of life. They enable our bodies to function, and are the basis for countless substances and processes we take for granted. Eyewitness Chemistry explores the world's natural chemistry and how we understand it and exploit it. Superb full-color photography of original equipment, intricate scientific instruments, three-dimensional models, and revealing experiments show the discoveries that have changed our way of life, from ancient alchemy to modern technology. Stunning demonstrations of key experiments and ideas provide a fresh and exciting look at this fascinating topic. See how a catalytic converter removes pollutants, how photographs are created, and how light bulbs work. Learn why there is a hole in the ozone layer, why a spider's silk is stronger than steel, and how plastics are made. Discover how chemistry is used to solve crimes, how fireworks and TNT work, what DNA is, and much, much more!