The student demonstrates a focused and detailed description of the main topic, which is the effect of temperature on the concentration of iron (II) ions in kangkung. The research question is also well-defined and detailed, allowing for precise determination of the variables and methodology. The background information provided is relevant and focused, with clear explanations supported by literature references. The chemistry of the experiment is explained in a way that is easy for the reader to understand, and the methodology is appropriate for the topic and focused on answering the research question. The student also shows awareness of safety hazards, ethical concerns, and environmental issues that may arise during the experiment.
