A biography of the scientist and humanitarian who discovered the vaccine for polio, a disease which crippled many people in the early part of the twentieth century.
Presents a brief biography of Alexander Fleming, Nobel Prize-winning British bacteriologist who discovered penicillin, describing his childhood, his achievements, and the impact of his contributions on modern medicine.
Explores the science of rocks and fossils, discussing rock types and changes, how fossils form, and fossil dating methods, and looking at the work of paleontologists. Includes a glossary.
