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Tell students to design their own experiment, using paper, M&M’s®, Pennies, other 2 sided material or Licorice as a radioactive material undergoing decay to discover the nature of the half-life of that material.

Students use M&M’s (or pennies and puzzle pieces) to demonstrate the idea of radioactive decay.

Description: With the Half-Life Laboratory, students gain a better understanding of radioactive dating and half-lives.

Students are able to visualize and model what is meant by the half-life of a reaction.

Seeing this connection will help students to understand how scientists can determine the age of a sample by looking at the amount of radioactive material in the sample.

If two nuclei have different masses, but the same atomic number, those nuclei are considered to be isotopes.

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