Ring-a ling
Background:
As trees age, they grow in height and width. Observing a cross section of a tree (tree cookie) you will see growth rings. You can tell the age of a tree by counting these rings. The width of the rings varies, depending on several factors, including amount of rainfall, available light, and length of growing season.
The annual rings of a tree are made each year when a new layer of wood is added to the trunk and branches of the tree. New wood grows from the cambium layer between the old wood and the bark. Since there is more moisture in the spring, the tree’s energy can be directed toward producing large growth cells. As the season moves into summer. the growth slows and finally stops in the fall.
For the rest of the article go to : http://www.treetures.com/RingALing/RingTeacher.html
Background:
As trees age, they grow in height and width. Observing a cross section of a tree (tree cookie) you will see growth rings. You can tell the age of a tree by counting these rings. The width of the rings varies, depending on several factors, including amount of rainfall, available light, and length of growing season.
The annual rings of a tree are made each year when a new layer of wood is added to the trunk and branches of the tree. New wood grows from the cambium layer between the old wood and the bark. Since there is more moisture in the spring, the tree’s energy can be directed toward producing large growth cells. As the season moves into summer. the growth slows and finally stops in the fall.
For the rest of the article go to : http://www.treetures.com/RingALing/RingTeacher.html