This revised edition takes a deep dive with scientists and explorers into the unknown frontiers of chemistry, and uncovers materials that exhibit remarkable or useful properties. Some of these materials consist of large molecules that can cure diseases, while others comprise motors or machines so small they are made of only a few atoms. In learning about the essential properties of materials, students learn how chemists are working to solve global issues, such as the rapid depletion of nonrenewable resources in our environment. This title offers students valuable insight into the methods and applications of chemistry, and how this field can make sense of and improve our way of life. Chapters include Developing and Designing New Chemicals and Materials; Nanotechnology-Technology on a Molecular Scale; Chemistry of the Brain-Molecules, Mood, and Mental Illness; Smart Materials-Materials That Adapt to Changing Conditions; Fuel Cells-Energy for a Power-Hungry World; Archeological Chemistry-Exploring History with Chemistry; and Cryo-electron Microscopy.