Activity

Radioactive Decay Model

Toss 100 pennies (or poker chips or any other two-different-sided objects) and remove all of those displaying tails. Line them up and repeat. The lines of pennies collected get smaller each time, successfully representing half-life.

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Pros
  • A clear representation of the proportional reduction of radioactive material
  • Requires easy-to-obtain materials
  • Scientific background information included
Cons
  • None