Photosynthesis is a process where plants create their own energy using sunlight. Plant leaves absorb red and blue light into their leaves, reflecting green light. This is why most plants are green in color. A chemical called chlorophyll is found inside most of the plant cells. This is the substance that absorbs sunlight. Meanwhile, plants are absorbing through their roots and storing it within their cells. When the sunlight hits the water molecules, the water breaks apart into hydrogen and oxygen. Plants also take oxygen in through holes in their leaves, called stomata. This is a plant’s way of respiration. When the carbon dioxide combines with hydrogen, a type of sugar called glucose is formed. This is a plant’s food and it uses this energy to live and grow. The extra oxygen molecules are released back into the atmosphere.