Carbon dating article for middle school

Archaeologists use the exponential, radioactive decay of carbon 14 to estimate the death dates of organic material.

The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.

“This is the largest fortress found in all of Israel to date between the Canaanite cities…

and it seems that it is essentially the largest fortress found in Israel until the days of King Herod,” states the website.

that radiocarbon measurements on the shroud should be performed blind seem to the author to be lacking in merit; …

group and the candidate laboratories devolved into a P. However, in a 1990 paper Gove conceded that the "arguments often raised, …

The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay.

Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon.

At any particular time all living organisms have approximately the same ratio of carbon 12 to carbon 14 in their tissues.

In the case of radiocarbon dating, the half-life of carbon 14 is 5,730 years.

This half life is a relatively small number, which means that carbon 14 dating is not particularly helpful for very recent deaths and deaths more than 50,000 years ago.