What is radioactive carbon dating

To demonstrate that the rates of decay of unstable nuclei can be measured, that the exact time that a certain nucleus will decay cannot be predicted, and that it takes a very large number of nuclei to find the rate of decay.This is the second lesson in a three-lesson series about isotopes, radioactive decay, and the nucleus.To do this lesson and understand half-life and rates of radioactive decay, students should understand ratios and the multiplication of fractions, and be somewhat comfortable with probability.Games with manipulative or computer simulations should help them in getting the idea of how a constant proportional rate of decay is consistent with declining measures that only gradually approach zero.The exercise they will go through of predicting and successively counting the number of remaining "mark-side up" candies should help them understand that rates of decay of unstable nuclei can be measured; that the exact time that a certain nucleus will decay cannot be predicted; and that it takes a very large number of nuclei to find the rate of decay.This lesson can be done in two, 45-minute class periods.Founded in 2002 by Nobel Laureate Carl Wieman, the Ph ET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations.

If you count ten and weigh them, then multiply by 8, you will know how many grams of candy to weigh out for each group.

Tell students: "We measure our rate of speed in a car in miles per hour.

This method of measuring a rate won't work for radioactive decay.

At the end of the lab, give them the opportunity to revisit these questions and change or justify their answers.

Procedure: Give each student a copy of the laboratory procedure called Radioactive Decay: A Sweet Simulation of Half-life.

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