In this tree-ring dating activity, students use activity sheets to determine a tree's age and to observe changes in climate from the tree-rings. Students investigate how archaeologists use tree rings to date evidence and they answer 5...

High schoolers work in pairs to determine the age of a tree using two different methods in this experiment. They collect data about how trees change over time.

Pupils discover how to estimate the age of redwood trees. They measure the trees' diameters by using string to calculate the circumferences. Students conclude by discussing the science of dendrochronolgy.