This alphabetically organized ten-volume set opens up the entire world of science in clear, nontechnical language. Its 798 entries provide fascinating facts covering the entire spectrum of science, from physical, life, and earth sciences to math, psychology, engineering, technology, and the environment. This third edition features 204 new entries and 594 updated entries. These informative essays range from 250 to 2, 500 words. Many include helpful sidebar boxes that highlight fascinating facts and phenomena, as well as color images and illustrations that enhance the text. All support the Next Generation Science Standards.