The student does not present the topic of the investigation explicitly enough, as there is no focused and detailed description of the main topic. However, a focused and detailed description of the research question is present. The background information provided is relevant but should be extended significantly, especially the section on the activation energy. The explanation of the chemistry should have also been improved and extended, particularly the part on the activation energy. The methodology of the investigation is highly appropriate to the topic, as the student measures the time to obtain 5 cm3 of gas in the reaction conducted at different temperatures. The methodology is focused on answering the research question, as the student correctly identifies the independent and dependent variables. The methodology also includes appropriate steps to assure the relevancy and validity of the obtained results, as the student lists the variables that have to be controlled or maintained constant and the methods of controlling them. The student shows full awareness of safety hazards, ethical concerns, and environmental issues that can arise during the experiment.