Alexander Fleming Coloring Page

Alexander Fleming was born on a farm in Scotland in 1881 and trained as a doctor. In 1928 he noticed that a mold growing on one of his dishes of bacteria had killed the bacteria around it, and he named the germ-killing substance it made penicillin.

Other scientists, Howard Florey and Ernst Chain, worked out how to turn it into a medicine in the 1940s, and the three of them shared the Nobel Prize in 1945. Fleming warned in his Nobel speech that germs can learn to resist penicillin if it's used carelessly, which doctors still worry about today.