A microbiology science project must contain an experiment that has something to do with observing or testing living objects using a microscope. Microbiology is the study of microscopic organisms, so projects and experiments cannot be performed without a microscope.
The different organisms typically studied fall into taxonomic arrangement categories such as bacteria, algae, fungus, viruses, nematode, parasites and protozoa. The study of the immune system also falls into the category of microbiology. The organisms studied can be single-celled organisms, or they can lack cells entirely or be a part of a multicellular colony. The focus of the project can fall under the different sub-disciplines of microbiology, such as mycology, virology, bacteriology and parasitology.
Ideas for beginner's microbiology projects include experiments involving yogurt, yeast, soap and household disinfectants. For an intermediate approach, possible areas of focus are food preservatives, garlic powder, topsoil and bacterial cultures. Advanced projects may contain experiments surrounding aeration, effects of ultraviolet light, antibiotics, fungus, disinfecting water, mouth microbes or bacterial resistance.
Other projects can focus on specific areas of study in microbiology, including microbial genetics, microbial ecology, microbial cytology, microbial physiology, molecular microbiology, and evolutionary or generation microbiology. There are also the arenas of medical, pharmaceutical, agricultural, food, water and environmental microbiology to consider as inspiration for the project.