Sometimes when we hear about famous scientific breakthroughs, we assume that the brilliant scientists behind them knew exactly what they were doing. That isn't always the case! This striking series demonstrates that sometimes mistakes in the laboratory lead to innovations that change people's lives. Pacemakers, penicillin, and microwaves are just some of the incredible developments that came about accidently. The history and science behind each discovery is clearly explained as well as its impact on the world. Helpful photographs add to the dynamic book design, and thought-provoking sidebars offer more information about essential topics. Features include: Encourages young scientists to understand that science is a process and even unexpected results can be enlightening and even useful. Graphic organizers facilitate readers' retention of key information. Supports concepts in both elementary history and science curricula and offers opportunities to exercise skills of the English Language Arts Common Core.