The student provides a focused and detailed description of the main topic, explaining the aim of the investigation to find the effect of temperature on the Bray-Liebhafsky oscillating reaction. However, the student should have included more information about the exact temperatures and methodology for measuring the time period of oxygen production in the research question. The background information provided is relevant and focused, explaining key concepts necessary for understanding the experiment. The chemistry is explained well enough for the reader to understand without the need for rereading, including clear explanations of the subreactions, mechanism, and kinetics of the Bray-Liebhafsky reaction. The methodology of the investigation is highly appropriate to the topic, using an oxygen sensor to study changes in oxygen concentration at different temperatures over time. The methodology is also focused on answering the research question, identifying the independent and dependent variables correctly. The student demonstrates full awareness of safety hazards, ethical concerns, and environmental issues that can arise during the experiment.
