Science Online (Facts on File)
Contains thousands of diagrams, definitions, biographies, essays, images, video clips, and experiments covering animal anatomy, anthropology and archaeology, astronomy and space technology, atomic physics, biochemistry, biology, botany, chemistry, computer science, earth science, environmental science, general science, genetics, health and medicine, human anatomy and physiology, marine science, physics, and weather and climate.
Sourced from Facts on File and many other publishers.