Description of Graph: As shown, yellow light has the fastest rate of photosynthesis out of white, red, and yellow light. The red light has the slowest rate of photosynthesis out of white, red, and yellow light. The white light has the median rate of photosynthesis out of the white, red, and yellow light.

Analysis and Conclusion: The hypothesis for the white light experiment was: If white light is shone on the leaf disks in the beaker containing sodium bicarbonate, then the amount of time it takes for the four leaf disks to float will be faster than yellow and red light because visible light includes all wavelengths of color. For this experiment, the hypothesis was refuted. The amount of time that it took the leaf disks to float was faster than the red light, but it was not faster than the yellow light. While the white light had an average rate of 360 seconds, yellow light had an average rate of 224 seconds, and red light had an average rate of 488.75 seconds. The hypothesis for the red light experiment was: If red light is shone on the leaf disks in the beaker …show more content…
First of all, the procedure always has a risk of error because of the difficulty in using different tools or methods. I believe that the vacuuming of the syringe and the difficulty of the leaf disks sinking to begin with caused a gigantic error. However, because the class had a time limit on the lab (unlike scientists who work in a high level laboratory for a living) these mistakes could not be corrected to get a better result. Another object of error in this experiment was the number of disks recorded that were able to float. In the experimental procedure instructions, five leaf disks were supposed to be recorded. However, the first experiment was only able to provide flotation data for four leaf disks. Because the group wanted the experiment to be consistent, four leaf disks were only tested for each