Determining age of trees. Obtain core samples from the local Forest Service Office. By counting rings, core samples clearly reveal the age of trees. By comparing various core samples with similar trees at your school or town, you can then estimate the age of trees. A second way to determine the age of trees is to examine a cross-section from a log.
Students add up the rings to determine the age of the tree.
With the tree-ring samples, have students look up specific dates in almanacs and determine what significant events occurred on various dates. Have students find the difference and compare these prices with to those of today. Coffee 0.08 per lb. Tea 0.55 per lb. Bacon 0.05 per lb.