The student clearly states the independent and dependent variables in the research question, identifying the concentration of jasmine tea leaves as the independent variable and the enzymatic breakdown of starch by amylase as the dependent variable. The research question also effectively describes the method of analysis, detailing the measurement of absorbance using a colorimeter. The background theory section is well-developed, linking jasmine tea to its effects on amylase activity and demonstrating an understanding of relevant biochemical concepts. While the student successfully identifies controlled variables and addresses safety, ethical, and environmental issues, there is a lack of explanation regarding the choice of sampling technique and the rationale for the number of trials conducted. Overall, the methodology is sufficiently detailed for reproducibility, with no irrelevant or repetitive information present.
