We come in contact with germs everywhere: the store, school, and in our homes. Not all bacteria make us sick, but those that do can be combatted with antibiotics. First discovered in 1928, penicillin is just one of many antibiotics that are used to treat those who are sick with a bacterial infection or have had surgery. Your readers will find out about the development of antibiotics and to how they work in the body. Resistance and the future of antibiotics...

While vaccines are a hot-button issue, there is no scientific doubt that they have eradicated some diseases from many modern countries. Including sections on what exactly vaccines are, why they are used, and how they work, the narrative of this book explains this newsworthy topic in age-appropriate language and detail. Full-color photographs of actual medical conditions prevented by vaccines and illustrations of these diseases make each seem even...

What is it like getting caught in a hurricane or a tornado? How does Earth s geography recover after enduring such disastrous weather? Questions such as these are answered in this engaging text that supports common areas of science curricula. Scenarios involving getting caught in dangerous weather are described, giving readers a glimpse of what it's like to experience a hurricane or tornado. The text is supplemented with informative fact boxes, well-organized...

Describes crustaceans, including their size, habitat, anatomy, life cycle, and relationship with humans.

Describes protozoa, and how they live on or within other organisms, including vertebrates and invertebrates, as well as plants and other single-celled organisms.

Explores various STEM jobs available to students who want to work in the field of technology, looking at what each job is like and what skills are necessary for success.

Anesthetics come in many forms including creams that are rubbed into the skin, gases to be breathed in, and injections administered through a needle. They all are used to numb, dull, or stop pain for patients undergoing medical procedures. But how do they do that? Curious readers step into the operating room to find out the exact biological mechanisms that make anesthetics work. They'll explore the history of how they were developed. Side effects,...