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Students use M&Ms to demonstrate the idea of radioactive decay. Parent isotopes are represented by the M side up (radioactive). Paul, MN, based on an original activity retrieved from also with the help of Jenni Johansen (other 8th grade science teacher at So. Paul Junior High School In this activity, students gain a better understanding of radioactive dating and half-lives.The emission of these rays is called nuclear radioactivity, or simply radioactivity. A nucleus that spontaneously destroys part of its mass to emit radiation is said to decay.A substance or object that emits nuclear radiation is said to be radioactive.Once students are in their groups, with supplies, and general directions are given, they are on their own for doing their runs.
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