Autumn leaves coloring pages for kids - just when autumn comes we have the prettiest leaves that fall from the trees and have all sorts of interesting colors. These are different shades of brown and red. All this is waiting for all players in this category. New printables are added here almost every day.
Autumn Leaves Coloring Book
Why do leaves change color in the fall ?
Each fall we marvel at the beauty of autumn colors. The mixture of reds, purples, oranges and yellows is the result of chemical processes that occur in the tree during the change of season from summer to winter. It is a remarkable chemical that absorbs energy from sunlight, which is used to convert carbon dioxide and water into carbohydrates such as sugars and starches. But in the fall, because of changes in day length and changes in temperature, leaves stop their food-making process. Chlorophyll breaks down, the green color disappears, and yellow and orange colors become visible and give the leaves some of their autumn splendor.
At the same time, other chemical changes can occur that create additional colors through the development of red pigments. Some mixtures give reddish and purplish fall colors to trees, while others give maple, for example, a brilliant orange color.The fall leaves of some trees have only yellow colors. Others, like many oaks, are mostly brown in color. All of these colors are the result of the mixing of different amounts of residual chlorophyll and other pigments in the leaves during the fall season.
As autumn colors appear, other changes occur as well. Where the leaf stem is attached to the tree, a special layer of cells develops that gradually divides the tissues that support the leaf. At the same time, the tree seals the cut so that when the leaf is finally blown away by the wind or falls under its own weight, a scar remains. Most deciduous trees in the world shed their leaves in the fall. However, the dead, brown leaves of oaks and several other species may remain on the tree until growth begins again in the spring.
Temperature, light and water supply affect the degree and duration of fall foliage color. Low temperatures above freezing promote the formation of anthocyanins, which create bright reds on maples. However, early frosts weaken the bright red color. Rainy and/or cloudy days tend to increase the intensity of fall colors.