work in pairs for the activities of this lesson which include researching and identifying butterflies, writing, and a brief oral presentation.

Learners explore the concepts of rdioactive decay and dating. They generate a radioactive decay table, use their data to plot a decay graph, develop the concept of half-life, and then use the graph to find the age of a mummified seal in Wright Valley Antarctica. In a follow-up exercise, they solve a mysterious Arctic murder.

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9th - 12th
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