The student clearly describes how the data was obtained and processed, making each procedural step easily understood, particularly through a breakdown of qualitative observations in Table 2. However, the description of data recording and processing lacks detail, as it does not include appropriate annotations for tables, graphs, and figures. Additionally, the document does not adequately consider the impact of uncertainties on the data and results, which needs improvement. Nevertheless, there are no major omissions or inaccuracies that would hinder the validity of the conclusions drawn from the investigation into sodium phosphate concentrations and plant growth. The student effectively conducts relevant data processing, accurately addressing the research question through the presentation of both qualitative and quantitative data.