Students identify heartwood, sapwood, and a tree's annual rings, infer from a tree's rings what damage or stress might have occurred in its life, and make a time-line of human history that coincides with a tree's rings.
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Decoding the Past Using Tree Rings
Besides the age of a tree, tree rings can tell scientists all kinds of interesting information. Learners read about tree rings, gaining an understanding of them, and then analyze four to five different tree horizontal slices of a tree...
6th - 8th Science CCSS: Adaptable