There seems to be something on this bread! I wonder what it is. (Aha!) That’s interesting! So, do you want to have a look? Come here, take a look. Wondering what they are? These are Microorganisms. So, do you want to learn more about them? (Zoom in!) There are some living organisms that cannot be seen with bare eyes and can only be visible with a powerful microscope. These organisms are called Microorganisms or Microbes. There are five types of living microorganisms. Fungi bacteria viruses algae and protozoa.