Fossil dating activity
Inscriptions, distinctive markings, and historical documents can all offer clues to an artifact's age.
And if the artifact is organic—like wood or bone—researchers can turn to a method called radiocarbon dating.
The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.
Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon.
For most scientists all of this seems so obvious that it is difficult to question.It contains an endless variety of beaches, mountains, quaint rural attractions and vibrant downtown centres.The Comox Valley is one of the most diverse recreational and cultural destinations in the world.Some layers contain mostly fish fossils while others contain land-dwelling creatures such as dinosaurs.Since each of these layers seems so specialized it is easy to conclude that one type of creature gave rise to the next type of creature over the course of whatever time it took to form the various layers between them.