In the existing education plan, it was determined that the existence of mould fungi, yeast fungi and parasite fungi were not known and their shapes could not be observed under a microscope. It is understood that microscopic organisms are not known to be everywhere and in large numbers, and it is not realised that there are fungi settled in our bodies. It has been realised that students and many people are not sufficiently aware of the scientific studies carried out today. It has been realised that while microorganisms are thought to cause harm, they cannot think that they also have benefits. In addition, it is known that direct learning takes place in activities carried out by doing and experiencing, and it is not easily forgotten. (Sözer, 1998) Since children in the concrete operational period can only reason about things that they have direct personal experience, our activities will provide skills such as designing experiments, critical thinking and reflective thinking.(Özdemir, O. Özdemir, P, Kadak, M. Nasıroğlu, S. (2012).