The student clearly identifies the independent variable as the different wavelengths of light and the dependent variable as the germination of lettuce, providing a well-defined research question. They describe the method of analysis effectively, detailing how the growth of lettuce will be measured using a simulation. The methodology is sufficiently detailed to allow for reproducibility, with clear steps and materials listed. However, the student does not adequately explain the choice of measurement techniques, sampling techniques, or the rationale behind the number of trials, which detracts from the overall clarity of the investigation. Additionally, there are several areas, such as safety, ethical, and environmental considerations, that require further elaboration to strengthen the investigation.
