The student clearly states the independent variable as the variety of apple and the dependent variable as the rate of osmosis, measured by percentage change in mass. The method of analysis is well described, detailing the assessment of osmosis over five hours in a 2M NaCl solution. However, the student fails to provide a background theory relevant to osmosis, does not adequately explain the choice of techniques for measuring variables, and lacks a clear rationale for the sampling technique used. Additionally, there are several areas where the methodology could be improved by eliminating repetition and addressing environmental issues related to waste disposal. Despite these shortcomings, the student successfully identifies and manages controlled variables, safety issues, and ethical considerations in the investigation.
