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Radiometric dating methods In geology, an absolute age is a quantitative measurement of how old something is, or how long ago it occurred, usually expressed in terms of years.
Most absolute age determinations in geology rely on radiometric methods. The most useful methods for measuring the ages of geologic materials make use of radioactive parent isotopes and their stable daughter products, as preserved in rocks, minerals, or other geologic materials.
The different numbers of neutrons possible in the atoms of a given element correspond to the different possible isotopes of that element. Carbon-12 is the isotope of carbon that has 6 neutrons.I tell the students that they will now become archaeologists as they play with the Ph ET simulation "Radioactive Dating Game".I ask the students to divide themselves into partners, and request that one partner to get a computer, while the second partner gets the record sheet they will use.This experiment is best used by student working in pairs.Grade Level: 5-12 grade Disciplinary Core Ideas (DCI) 3-5ETS1-2, MS-ESS1-4, HS-ESS1-6 Time for Teacher Preparation 40-60 minutes – To gather materials Activity Time: 40-60 minutes (1 Class Period) Materials: Objectives Students try to model radioactive decay by using the scientific thought process of creating a hypothesis, then testing it through inference.