The student clearly identifies the independent variable as light wavelength and the dependent variable as phototropic response, and provides relevant background theory, justifies the experimental approach and seed choice, and explains how controlled variables were maintained. The methodology is sufficiently detailed and focused to allow the investigation to be reproduced, and the student addresses safety and environmental concerns. However, the research question does not specify how the response angle is measured, and the student does not explain how the LED wavelengths were established or verified. The student also does not justify the number of trials or seedlings, or address the ethical considerations of using living wheat seedlings.
