Students should answer the questions on their student sheet based on their graphs and the data they collected.Students can check their answers by going to the Radiometric Dating page by Professor Pamela Gore from the Georgia Perimeter College.
"Carbon-14 undergoes beta decay with a half-life of 5720 years.
The element carbon is an essential element in all living matter.
You can continue to fill the funnels as different classes arrive.
Empty the graduated cylinders between classes if the volume is more than about 25 ml.
You may group them in any size group, but working in pairs is optimal for this exercise.
The lab stations should have been set up already as described in the Planning Ahead section above.
This lesson is the third in a three-part series about the nucleus, isotopes, and radioactive decay.
The first lesson, Isotopes of Pennies, deals with isotopes and atomic mass.
Make a data table and, at regular intervals (you decide how long), record the time on the clock and the volume of water in the graduated cylinder.