Empty the graduated cylinders between classes if the volume is more than about 25 ml."Carbon-14 undergoes beta decay with a half-life of 5720 years.On a data sheet, record the number of “heads-up” and “Tails-up” pennies after the first shake.Formula: ((# of Atoms to Start X 2)/2) X Half Life=Number of years Old Graph: Graph time vs. Title your graph and note the original number of Head-up Parent Pennies atoms.Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object. Cover the container and shake for about ten seconds (each shake represents 8500 years), holding it tightly to avoid them flying out. Next, remove all the pennies which are now “tails-up.” Count these and put them aside.
Understand how decay and half life work to enable radiometric dating.
Fill the funnels with ice before the students arrive in the classroom.
You can continue to fill the funnels as different classes arrive.
Atoms may stick together in well-defined molecules or they could be packed together in large arrays.
For students, understanding the general architecture of the atom and the roles played by the main constituents of the atom in determining the properties of materials now becomes relevant.