Radioactive dating worksheet
Although students could work through the simulation individually, I prefer partnerwork to foster discussion among students, encouraging scientific discourse (SP7).
In this video I walk you through using the simulation.
As the students work on the simulation they are visualizing how stability and change in natural or designed systems can be constructed by examining the changes over time (CCC Stability and Change), as well as analyzing and interpreting data (SP4).
This lesson is designed to help students understand the concepts of radioactive dating to help determine the approximate age of fossils and rocks.
Make sure to know any food related allergies of the students before handing them the candy.Example data set: Potassium-40 = 12 isotopes Argon-40 = 88 isotopes Half-life = 1.25 billion years Answer: Using the graph from the Exploration activity, this radioactive isotope has undergone three half-lives thus making the fossil (1.25 * 3 =) 5.25 billion years old.Grouping Suggestions: The teacher should assign small groups (2-3 students) to ensure diversity within the groups.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.