The student clearly states the independent variable, water temperature, and the dependent variable, the force of buoyancy, in the research question. However, the research question lacks clarity regarding the method of analysis, as it does not specify how the buoyant force will be measured. The student provides a thorough background theory related to buoyancy and effectively explains the techniques used for measuring both variables. While the methodology is well-described and free from irrelevant information, the student fails to address ethical and environmental issues adequately, needing to clarify why there are none or identify potential impacts. Additionally, the choice of sampling technique requires further explanation to strengthen the investigation.