CDS Model Paper 1 General Knowledge

Anton Van Leeuwenhoek are first time saw bacteria through a microscope made by himself. He took samples of plaque from his own teeth and mixed them with water. When he looked at the mixture through his microscope he saw what he called "many very little living animalcules." These were some of the first recorded observations of what today we would call bacteria. Leeuwenhoek found that these were killed when he drank hot coffee.