4.4 billion-year-old crystal is oldest piece of Earth - Page 3

Pedigree Database

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by vk4gsd on 03 March 2014 - 00:03

Bee don't set yr kid up to fail, if the assignment criteria is for an element, zircon is not an element - ZrSiO4

by beetree on 03 March 2014 - 05:03

Yeah, but it bonds with other elements so I think he will be okay. He had to read an article and answer a worksheet of questions.  Teeth Smile





 


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