Radioactive carbon dating is useful for the past

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A man called Willard F Libby pioneered it at the University of Chicago in the 50's. This is now the most widely used method of age estimation in the field of archaeology.

"Carbon-14 undergoes beta decay with a half-life of 5720 years.The Case of the Melting Ice Frosty the Snowman lies melting in the funnels at your lab station.There were no eyewitnesses, but there are several suspects. You need to determine the exact time at which Frosty was put into the funnels to melt away, leaving no trace.By the end of the 8th grade, students should know that all matter is made up of atoms, which are far too small to see directly through a microscope.They should also understand that the atoms of any element are alike but are different from atoms of other elements.The lab stations should have been set up already as described in the Planning Ahead section above.

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