The student clearly describes how the data was obtained and processed, providing a detailed methodology that allows for easy understanding of each procedural step. However, the description of data recording and processing lacks clarity, as the text in the tables is difficult to decipher, and the student did not include all steps of data processing outside the tables for easier verification. Additionally, the student did not adequately consider the impact of uncertainties on the data and results, failing to explain the significance of error bars and standard deviation in relation to the reliability of observed trends. While the student’s investigation into pH and catalase activity is thorough and valid, the hypothesis would have benefitted from more precise focus and additional statistical analysis to better address the research question.
