Carbon dating exam questions cape cod dating
Since 1947, scientists have reckoned the ages of many old objects by measuring the amounts of radioactive carbon they contain.
New research shows, however, that some estimates based on carbon may have erred by thousands of years.
This experiment is best used by student working in pairs.
But it is already clear that the carbon method of dating will have to be recalibrated and corrected in some cases.Sign up for Re Actions™, the e-newsletter for educators that offers teaching ideas about nuclear science and technology.It is published by the Center for Nuclear Science and Technology Information, an initiative of the American Nuclear Society, between September and May.The rate of decay is a fixed rate called a half-life.The half-life of a radioactive isotope refers to the amount of time required for half of a quantity of a radioactive isotope to decay.
Tell students to design their own experiment, using paper, M&M’s®, Pennies, other 2 sided material or Licorice as a radioactive material undergoing decay to discover the nature of the half-life of that material.