It is becoming increasingly difficult for students to find quick, direct answers to basic science questions. With time tight for researching & writing, they will welcome The Facts On File Science Handbooks. Featuring easy-to-read & -understand chronologies, biographies, glossary entries, & charts, measurements, & formulas, students, teachers, & general readers will consider these books primary one-stop resources for quick answers to frequently asked science questions. Each handbook features: * A glossary of 1,000 key terms in the discipline * Biographies of 300-400 prominent people in each discipline from ancient times to the present day; each entry focuses on the accomplishments for which the scientist is noted * A chronology that tracks the dates of significant developments & discoveries from ancient Greece to the present day * Tables, charts, & diagrams * Measurements, formulas, & calculations. Among the topics covered are: * Amniocentesis * Botany * Cell Membrane * Fossils * Zygote. Biographies include: * John James Audubon * Francis Bacon * Hippocrates * James Parkinson * Jonas Edward Salk. Tables, charts, & diagrams include: * Families of Flowering Plants * Classifying a Plant * Classifying an Animal * Tree of Life * Digestive System in Humans.