But under 100 watts plants under the purple cellophane came out last. This indicates the inconsistency of this experiment. Which may have been caused because the purple beaker wasn t close enough to the light source, hindering its ability to absorb the light. The clear cellophane was the next in having the fastest photosynthesis rate. Although the color that would cause the plant to photosynthesize the slowest may not be determined but it can be hypothesized that the green cellophane may be the color that slows down the rate of photosynthesis.
Plants absorb all colors of light except for green.
Plants, instead of absorbing the green light reflects it, giving plants the green color that it has. On the results green stayed relatively close to the lower ranks. Although plants reflect green light it was still able to photosynthesize. This leads to another error in the experiment, which is the fact that each cellophane may not be filtering out all of the light waves. In other words not only is green light entering but the plant may also be absorbing other color lights.