Title GES Q2 0701 SG.pdf ✅

Unit 7: Chemistry in History and Daily Life 1 The Legacy of Louis Pasteur Figure 1. A historic illustration showing Louis Pasteur in his laboratory, conducting experiments that would later revolutionize medicine and food safety. Introduction The 19th century marked a turning point in science as traditional beliefs about disease gave way to evidence-based discoveries. Among the pioneers who challenged outdated medical theories was Louis Pasteur, a chemist whose work bridged biology and public health. His experiments led to the development of germ theory, a foundation of modern microbiology. Beyond his laboratory achievements, Pasteur’s innovations transformed hygiene, vaccination, and the preservation of food. Understanding his legacy helps us appreciate the scientific principles that continue to safeguard public health today. 7.1. The Legacy of Louis Pasteur 1