The student clearly states the independent variable, which is the storage temperature of the fruits, and the dependent variable, the enzymatic activity of catalase measured by the volume of oxygen produced. The research question also describes the method of analysis, specifying how the enzymatic activity will be assessed. A background theory section is included, explaining relevant concepts such as catalase's role and the effects of temperature on enzymatic activity. However, the student fails to explain the sampling technique used, discuss the rationale behind the number of trials, and address controlled variables adequately. Additionally, there are shortcomings in discussing ethical and environmental issues, as well as the need for a more detailed methodology to ensure reproducibility.
