This information-packed atlas combines attractive photos, diagrams, and illustrations with lucid text to present a general overview of physics, chemistry, and their relationship to each other in nature and technology. The book's many color illustrations are complemented with brief, enlightening captions that explain fundamental principles of physics and chemistry and their practical applications. Detailed diagrams explain and illustrate the structure of atoms, chemical bonds, and many other topics. A detailed index guides the reader to individual topics. Newest in Barron's series of popular illustrated science reference guides, the Essential Atlas of Physics and Chemistry explains fundamental principles of both sciences and shows how they relate to one another. Text and illustrations are combined in an easy-to-understand yet scientifically accurate context. The related concepts of energy and heat are explained in terms of their uses in both simple and complex machines. Also explained are the characteristics of liquids, gases, and solids. Other subjects covered are the characteristics of sound, light, electricity and magnetism, atomic structure, the periodic table of elements, and simple chemical reactions. Full-color photos, artwork, and diagrams on every page complement clear textual descriptions.