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Utah Education Network
Uen: Isotopic Dating Activity
Students will do research relating half-life and the age of radioactive substances on interesting topics.
Physics4kids
Physics4 Kids: Modern Physics: Releasing Particles
Explains basic information about radioactivity. Learn about half-life through text and video.
University of Saskatchewan (Canada)
University of Saskatchewan: Modeling Exponential Decay Using Logarithms
Radioactive decay is a real-life example of exponential decay. This site solves an example problem by using the exponential decay equation.