The Age Of Trees
Trees grow in height, in width and in depth. The trunk becomes thicker, adding a new layer of wood beneath the bark each year. These layers form concentric rings and so, by counting these rings, we can find out the age of a tree.
The thickness of each ring indicates the weather conditions in which it grew. The rings are wider in case of rain and sun, thinner if the tree has suffered drought.
Interesting things about the age of trees
The oldest living tree is called eternal God and is a Sequoia which has survived more than 12000 years.
The highest numbers of rings counted on a felled tree was a Sequoia over 4000 years.
The oldest pine tree in the USA is 46000 years old.