Using dice, each one marked with one side that represents a daughter isotope, students can roll their way through the decay cycle of a hypothetical element.
As they record their rolls on a data chart, students create and evaluate the decay curve for the isotope.
Students will answer comprehension questions and solve word problems using a table with information about the half-lives of radioactive elements.
Students will need a 100 'marked' dice (a piece of tape on one side of each) to conduct the "How Old Is That Rock?
The amount of carbon-14 in the air has stayed the same for thousands of years.
There is a small amount of radioactive carbon-14 in all living organisms because it enters the food chain.
The approximate time since the organism died can be worked out by measuring the amount of carbon-14 left in its remains compared to the amount in living organisms.