The student provides a focused and detailed description of the main topic, including the aim of the investigation to analyze the effect of repeated heating of cooking oils on their unsaturated fat content. The research question is also clearly stated. Relevant and focused background information is provided, including the definition of reheating oils and the relevance of triglycerides. The chemistry is explained thoroughly, and the methodology is highly appropriate to the topic and focused on answering the research question. The methodology also includes appropriate steps to assure the relevancy and validity of the obtained results, and the student shows full awareness of safety and environmental hazards that can arise during the experiment. Although the student did not mention any ethical concerns, it is not relevant to this criterion and does not affect their score.
