The student did not initially provide a general topic of the investigation at the beginning of the work, which is essential for setting the context. The research question also lacked specificity and required more detail, particularly regarding the values of water density and the method of analysis. Additionally, the explanation of the physics behind single-slit diffraction was not sufficiently detailed, and visual aids or diagrams were not included. While the methodology was clear and included steps to assure the relevance and reliability of the collected data, it did not adequately focus on addressing the research question and lacked detailed descriptions of the variables and equipment used. Furthermore, there was no mention of safety hazards, ethical issues, or environmental considerations, which should have been addressed in the Risk Assessment section at the end of the methodology.