The student clearly described how the data was obtained and processed, making each procedural step easily understood through detailed accounts and systematic organization of qualitative and quantitative observations. The description of data recording and processing was precise, with well-annotated tables and graphs that consistently applied units and significant figures. However, the student did not adequately consider the impact of uncertainties on the data and results, which was an important omission. Despite this, the work did not contain anything that would hinder the validity of the conclusions, as the analysis of voltage effects on hydrogen gas production was thorough and supported by appropriate statistical methods. Overall, the student conducted relevant data processing that accurately addressed the research question, demonstrating a comprehensive understanding of the experimental data.
