In the experiment the indie variant was the different colored cellophane red and purple. The dependent variable was the control, which was one cup of grass seed placed under a lamp 0.5 meters away from the lamp with no cellophane.

Several sources of error whitethorn occupy been the amount of the tap water during this experiment was non monitored carefully; in any case the environment may have not been as suitable as needed to be also little things such as amount of light, lack of attention, not measured correctly, the cellophane was not taped correctly or the light bulb was not strong enough these all could have been errors of the out come of the experiment. If this experiment were to be redone the amount of water should be increased do to our knowledge of the plants being parched. finally something that would be improved if redoing this experiment is the height of how far the light is from the plant. Because the plant was become dry and dying.
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