Board Thread:General Discussion/@comment-24283777-20130529010927/@comment-24283777-20130601214612

81.101.202.233 wrote: That's like asking 'Why is grass green?' Oh thats easy! Grass is green because grass and other green plants have a chemical called chlorophyll, and its special structure allows it to specifically catch blue and red light. All light has energy, and chlorophyll absorbs the colors that have the correct energy to help power the plant's machinery. The plant can then turn carbon dioxide and water into glucose, a sugar. The leftover light, mostly green, bounces off and reaches our eyes; since there's a lot of chlorophyll in plants, we see them as being green.