Teaching radiometric dating

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The thing that makes this decay process so valuable for determining the age of an object is that each radioactive isotope decays at its own fixed rate, which is expressed in terms of its half-life.

When the isotope is halfway to that point, it has reached its half-life.

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.

Well, we know this because samples of his bones and hair and even his grass boots and leather belongings were subjected to radiocarbon dating.

Radiocarbon dating, also known as carbon-14 dating or simply carbon dating, is a method used to determine the age of organic material by measuring the radioactivity of its carbon content.

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