Not only does its name anticipate the American document of a century later, the English Bill of Rights anticipates some of the American billâs specific provisionsâfor example, the Eighth Amendmentâs ban on excessive bail and fines and on cruel and unusual punishment.
If the leaf contains carotene, as do the leaves of birch and hickory, it will change from green to bright yellow as the chlorophyll disappears. In some trees, as the concentration of sugar in the leaf increases, the sugar reacts to form anthocyanins. These pigments cause the yellowing leaves to turn red.
Before we learn why leaves change color in autumn, let's talk about what leaves do during the rest of the year. Each leaf on a tree is like a tiny solar panel, gathering sunlight the tree uses to make food. Sunlight helps turn water and carbon dioxide into oxygen and glucose, a sugar that the tree uses for food (energy) to grow.