Radiometric dating worksheet middle school

Because living things constantly interchange carbon atoms, the amount of carbon-14 remains constant, but when organisms die, no new carbon-14 enters the organism.However, the carbon-14 that was in the organism at death continues to disintegrate.Write a letter to a friend explaining what radiocarbon dating is.Be sure to include how radiocarbon dating works backwards to solve a puzzle.Explain to your friend how you and other archaeologists, with the help of chemistry, determine how old your discoveries are.You can refer to How Carbon-14 Dating Works, from How Stuff Works, to help you answer the question.Advise students to read through the case first so that they understand what they should do.Written below is the case as it appears on The Case of the Melting Ice student sheet.

Students should complete the Analysis section of the lab sheet, which will be used as part of their assessment.On a separate sheet of paper, immediately record the volume of Frosty's melted remains (water) in your graduated cylinder and note the time on the clock.Make a data table and, at regular intervals (you decide how long), record the time on the clock and the volume of water in the graduated cylinder.Fill the funnels with ice before the students arrive in the classroom.You can continue to fill the funnels as different classes arrive.

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