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How old is the Earth?
by Martyn Overy - Wednesday, 3 September 2003, 11:59 PM

There are a number of different methods that scientists use to estimate the age of the Earth. Find out about these different methods.

(a) Describe these methods.

(b) Describe any problems or limitations of these different methods

Useful starting points. Please note that there are other , non-scientific, views on the formation of the Earth!