The student provides a focused and detailed description of the main topic, which is investigating the effect of different temperatures on the rate of reaction of the enzyme catalase. They also provide relevant and focused background information about H2O2, helping the reader understand the context of the investigation. The biology and chemistry behind the catalyze activity and H2O2 are explained well enough for the reader to fully understand without the need for rereading. The student uses an appropriate methodology, including an oxygen probe to measure oxygen volume, and identifies the independent (temperature) and dependent (oxygen%) variables to pursue the research question. They also demonstrate full awareness of safety hazards. However, the student does not show full awareness of ethical concerns, which should be addressed to ensure all aspects of the experiment are considered.
