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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Tree Rings, Ice Cores, and Varves

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] How scientists can determine age and other features of a rock or material it contains.
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Unit Plan
CK-12 Foundation

Ck 12: Earth Science: Tree Rings, Ice Cores, and Varves

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] How scientists can determine age and other features of a rock or other material.
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Lesson Plan
University of Texas at Austin

University of Texas: Texas Memorial Museum: Understanding Geologic Time [Pdf]

For Teachers 6th - 8th
A lesson plan containing two activities for students to gain a better understanding of geologic time scale. The first activity allows students to get a visual of geologic time by role playing events in time on a football field. The...