The student clearly states the independent variable as different music tempos and the dependent variable as the growth of Saccharomyces cerevisiae, measured by carbon dioxide production. The research question includes a detailed description of the analysis method, outlining how measurements will be taken at specific intervals. Relevant background theory on fermentation and yeast metabolism is well articulated, enhancing the understanding of the experiment. However, the student does not sufficiently explain the choice of measurement techniques or sampling methods, nor do they justify the number of trials or other methodological aspects. Despite these gaps, the student effectively identifies and addresses safety, ethical, and environmental issues, and provides a comprehensive methodology that supports reproducibility.
