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In this activity students will examine sections of cut trees. They will observe and describe the difference between early and late wood, make a guess about the age of the tree, determine the actual age by counting the rings, and identify the rings that represent the years the student, the student's parents, and the student's grandparents were born, or years of historical importance. In addition, students may identify the narrowest rings, then check precipitation records to see if these coincide with years of low rainfall. They will discover that trees grow in diameter by producing new wood in the layer just beneath their bark.
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