A biology investigatory project is a project involving a combination of research and scientific experimentation that relates to the study of living organisms. Investigatory projects typically lead to a final presentation at an exhibit or science fair, or a report.
Investigatory projects start with a topic of interest. Then the investigator chooses a particular area of that topic to explore and formulates a question or hypothesis to study further. Next the investigator develops a way to study that question. For example, to study how much light does a plant need, the investigator places several plants of the same age and variety in different light conditions. The investigator keeps detailed data on the results of their investigation and presents the data in a useful form when the investigation is done.