The student clearly described how the data was obtained and processed, making each procedural step easily understood. The documentation of data recording and processing is detailed and precise, with well-organized tables and graphs that were appropriately annotated and consistently use correct units, decimal places, and significant figures. The student effectively addressed uncertainties by calculating standard deviations and discussing the propagation of uncertainty, demonstrating an understanding of its impact on data reliability. There were no significant omissions or inaccuracies that would compromise the validity of the conclusions drawn from the investigation, which indicated that higher temperatures result in lower citric acid concentrations. Relevant data processing was conducted, with both qualitative and quantitative data presented, and statistical measures included to accurately address the research question.