Lesson Overview
Students explore the concept of radioactive decay and half-life through a penny-flipping activity, then learn how this principle is used in radiocarbon dating to estimate the age of ancient organic materials in archaeology. They also discuss the limitations of this dating technique.
Essential Question
How can scientists use the predictable decay of radioactive isotopes, like radiocarbon, to estimate the age of organic materials and revolutionize our understanding of the past?
Grade(s):
Subject(s):
Recommended Technology:
Other Instructional Materials or Notes:
9, 10, 11, 12
Materials
• Activity 1:
o Half-Life & Radiocarbon Dating Worksheet (one for every student)
o 100 pennies per group
o One zip-lock plastic bag per group
• Activity 2:
o One scientific calculator per student
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Log In to View LessonStandards
- E-ESS1-6. Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earths formation and early history.
- RI.MC Meaning and Context
- RI.MC.6 Summarize key details and ideas to support analysis of central ideas.
- RI.MC Meaning and Context
- RI.MC.6 Summarize key details and ideas to support analysis of central ideas.
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Log In to View LessonLesson Created By: MegGaillard
Lesson Partners: South Carolina Department of Natural Resources