# Define radioactive carbon dating

Have students look at the Glossary of Nuclear Science Terms for alpha and beta decay.Ask students to explain the terms in their own words.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.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."Today we will simulate radioactive decay to understand what we mean by half-life.Radioactive decay, also known as radioactivity, is the spontaneous emission of radiation from the unstable nucleus of an atom." Have students go to the Isotopes Project website to look for more information about radioactive decay.

Ph ET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery. The mathematics of inferring backwards from measurements to age is not appropriate for most students.They need only know that such calculations are possible. 79.) In this lesson, students will be asked to simulate radioactive decay by pouring small candies, such as plain M&M's® or Skittles®, from a cup and counting which candies fall with their manufacturer's mark down or up.Before the lesson, you will have to weigh out about 80 candies for each group of students.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.

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