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Uranium–lead dating

physical science Maturity 11-13

We can tell how old rocks are.

ConcordiaDiagram.jpg
ConcordiaDiagram.jpg
Some rocks have tiny bits inside. These bits change over a long time. This helps us find the age. It is like a clock. Can you find a rock?

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File:ConcordiaDiagram.jpg
ConcordiaDiagram.jpg
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📚 Content adapted from Wikipedia | Readability: FK 13.3 | Vital Level 5