Radioactive dating gcse revision Online chat gratis


09-Apr-2019 13:48

This is a slide and worksheet for radioactive dating and half life activity.

The Slides are to be shown at the front and then each item is shown in turn and the pupils use their graphs to calculate the age of each item from the percentage of carbon found in them. take longer than you think, but keeps them engaged and there're questions to be answered in their books also.

The carbon-14 it contained at the time of death decays over a long period of time.

By measuring the amount of carbon-14 left in dead organic material the approximate time since it died can be worked out.

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The unstable Carbon-14 within the organism begins to decay to form Nitrogen-14 by emitting a beta particle. The age of a rock can be calculated if its ratio of uranium to lead is known.



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