As fall arrives and the green, food-making color fades, other pigments such as yellow, orange and red ones become more visible. Chlorophyll makes them green and helps carry out photosynthesis during warm, sunny months. There are many types of pigments in plant leaves. ![]() Uncover these hidden colors of fall by separating plant pigments with a process called paper chromatography. The leaves' other pigments, some of which were already there during summer, become visible. In autumn, when colder, shorter days arrive, many kinds of trees no longer make food energy with their leaves and, consequently, no longer need the green pigment. This primarily uses a pigment that reflects green light, which gives the leaves their characteristic color. ![]() Have you ever wondered why leaves change from green to an amazing array of yellow, orange and red during the fall? Leaves get their brilliant colors from pigments made up of various size, color-creating molecules.ĭuring the warm, sunny months, plants use their leaves to turn sunlight into food energy, a process called photosynthesis.
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