How Antibiotics Changed the World

Gr 9 Up—An illustrated time line of important events opens each title, followed by a short introductory chapter typically relating the topic to current events—for example, in Electricity, the devastating effects of Hurricane Maria on Puerto Rico. Subsequent chapters review the history of development in each field, with digressions to highlight major figures, inventions, and social changes, both positive (robotic drones helping to prevent wild animal poaching in nations across Africa) and negative (the impact of fossil fuel consumption by automobiles on global climate change). Long blocks of text are broken up by pull-quote boxes and a range of helpful illustrations, as well as short companion articles on salient topics, such as the HTML markup language or the dark side of social media in Internet. Considerable source notes and two pages of suggested reading close each volume.