Radioactive dating for middle school Naked chat norge
Learn about half-life and how it is used in different dating methods, such as uranium-lead dating and radiocarbon dating, in this video lesson. As we age, our hair turns gray, our skin wrinkles and our gait slows.However, rocks and other objects in nature do not give off such obvious clues about how long they have been around.Larger-than-life concepts such as prehistoric time, half-life properties and decay functions can be wrestled down to understandable portions using lesson plans provided by educational and state agencies for free online.Engaging middle school students in hands-on activities makes learning fun, increasing retention rates and the ability to integrate radiometric dating concepts with larger scientific and mathematical concepts later on.The University of Colorado hosts an interactive Radioactive Dating Game that teaches students about carbon and other radiometric dating types, as well as half-life and decay functions.Students must match the age of items with the percentage of dating elements remaining to win the game.The video segment comes with follow-up discussion questions and printable essays for the classroom.
The methods work because radioactive elements are unstable, and they are always trying to move to a more stable state. This process by which an unstable atomic nucleus loses energy by releasing radiation is called radioactive decay.
Related teaching materials and games are also linked on the website.
Montana's Office of Public Education offers a lesson plan which teaches students about radiometric dating using information provided online about American Indian bison bones and prehistoric kill sites.
There are different methods of radiometric dating that will vary due to the type of material that is being dated.
For example, uranium-lead dating can be used to find the age of a uranium-containing mineral.
Students create a standard decay curve for a fictional element then use the graph information to date "rocks" with the element in them.