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Here is an easy-to understand analogy for your students: relative age dating is like saying that your grandfather is older than you.

Scientists look at half-life decay rates of radioactive isotopes to estimate when a particular atom might decay.For example, you can’t find the remaining amount of an isotope as 7.5 half-lives by finding the midpoint between 7 and 8 half-lives.This decay is an example of an exponential decay, shown in the figure below.Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.Read the passage in this science printable to learn about the history of radioactive dating and its uses.

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The Fun Dating Group is primarily commitment free, but who knows what might happen as time goes on...