Why Do Leaves Change Color

Why Do Leaves Change Color？

Look at the leaves! 1t's autumn, and leaves are turning red and yellow,gold and brown. Each type of tree has its own kind of leaves. The colors of autumn leaves differ from tree to tree. Some oak leaves may be brown or yellow,while maple leaves may turn bright red.

Leaves come in different sizes and shapes as well as colors. Some leaves are wide, and others narrow, Some have points, while others may be rounded. How many different kinds can you find?

Just a few weeks ago, all the leaves were green. Back in the spring, the tiny new leaves uncurled from their buds. The green color in the leaves helps them to absorb or hold sunlight.Chlorophyll gives the leaves their green coloring. Chlorophyll is a natural coloring called a pigment.

Leaves are very important to the tree. They make a kind of sugar that is the tree's food. Leaves need sunlight, water, and air to make this food. The leaves work to feed the tree all summer long. The sugar is used by all parts of the tree-the leaves, branches, trunk, and roots. The food, or sugar, helps the tree to grow, Extra sugar is stored in the leaves.

In the fall, many things are changing. In many places, there is a change in the weather. There are changes in light and temperature. Inside the leaves, there will be many changes too. All of these changes bring about the beautiful colors of fall. In the fall, there are fewer hours of sunlight each day. The change in light tells the tree to get ready for winter. Winter is a time of rest for the tree.When winter comes, the tree will have to survive with less water and sunlight.