Doctors help people stay healthy. When people get sick, doctors help them get well again. Today, doctors use many complex instruments to treat people. Long ago, doctors had few instruments and did not know as many ways to help people get well.
Many years ago, doctors trained nurses to help them treat people. Today, nurses go to school to learn about medicine and about how to help people when they are sick. Nurses perform many of the same duties as doctors.
British scientist Robert Hooke built an early microscope and was the first scientist to observe cells and give them their name. Anton van Leeuwenhoek created the best microscopes of his time and used them to study living organisms. Matthias Schleiden, Theodor Schwann, and Rudolf Virchow created Cell Theory, which says that all living things are made of cells; cells are the smallest part of a living thing; and all cells come from other cells.
This gripping title traces the causes, symptoms, and treatment of plague through the height of the Black Death in Europe and into the modern day.
In 1963, Les Skramstad came home after a hard day’s work at the local mill and mine in Libby, Montana. His wife kissed him at the door and his kids playfully grabbed his legs. They didn’t mind that he was covered in powdery brown dust. Little did Les and his family know that the dust was deadly. Deadly Mine: Libby, Montana traces the tragic story of a small mining town that eventually became poisoned by a deadly mineral called asbestos. Fascinating photos of the actual events, maps, and fact boxes enrich the compelling text. The personal and heart-breaking story will grip and inspire young readers.
In December 1952, a thick layer of black smog blanketed London. The filthy air blinded people on the streets and brought traffic to a screeching halt. Worst of all, the pollution was deadly. It sickened 100,000 people and took the lives of 4,000. Killer Smog: London, England traces the devastating story of air pollution that took thousands of lives and brought London to a standstill. Fascinating photos of the actual events, maps, and fact boxes enrich the compelling text. The personal and heart-breaking story will grip and inspire young readers.
Introduces readers to the cool career of veterinarian by giving a better understanding of this cool job.