The student clearly identified temperature as the independent variable and reaction rate as the dependent variable, and explained relevant reaction theory and the colorimetric method. The student justified the sampling approach, temperature range, repeated trials, measurement precision, and controls, and provided a sufficiently detailed procedure for replication. Ethical and environmental considerations were addressed, but the safety discussion did not sufficiently explain how exposure to the identified chemical hazards was prevented. The relevant section didn't clearly explain the measurement technique. The student should have explicitly connected the absorbance at 565 nm to the permanganate concentration, and the steepest absorbance–time slope to the maximum reaction rate.
