The student clearly stated the independent and dependent variables in the research question, identifying temperature as the independent variable and the concentration of aspirin as the dependent variable. However, the student did not specify the method of analysis in the research question, which should have included a phrase indicating how the aspirin concentration would be determined. The student provided relevant background theory and effectively explained the techniques used to measure the variables. While the student names and controls various variables, they failed to justify the selection of specific temperatures for the investigation. Additionally, the student addressed safety and environmental issues associated with the investigation, but neglected to discuss any ethical considerations. Overall, the methodology was well described, allowing for reproducibility.
