The student clearly described how the data was obtained and processed, making each procedural step easily understood. The methodology was detailed, with organized tables showing mean, standard deviation, and relative standard deviation for each metal at different pH levels. Data recording and processing were precise, with appropriate annotations and the correct application of units and significant figures throughout the work. However, the student needed to expand on the impact of uncertainties on the data and results, as this section lacked detailed explanations of how measurement uncertainties affected the conclusions. Overall, the work supported the validity of the conclusions drawn regarding corrosion rates, and the data processing effectively addressed the research question.