Use photographs taken with a polaroid camera to show stages of development. Use graphs and charts to plot and make an analysis of the growth processes of plants' responses to visible light wavelengths in relationship to the temperature. Summary Plants usually respond to light, touch and temperature. They respond with leaves, flowers and fruit. Visible light can be separated into different colors.
Some colors reflect light while others absorb light.
A difference in light wavelengths will significantly affect the length, color, germination period, number of leaves, quality and quantity of fruit. Darker shades of green and red transparency sheets produced a significant degree of change in plant development compared to lighter shades of red and green. Temperature differences were slight and not controlled. All plants received a normal temperature during the experiment. All plants grown in a dark room received a full day of darkness.