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    Radiometric dating lab exercise

    Familiar to us as the black substance in charred wood, as diamonds, and the graphite in “lead” pencils, carbon comes in several forms, or isotopes.

    One rare form has atoms that are 14 times as heavy as hydrogen atoms: carbon-14, or C ratio gets smaller.

    Once they determine the age of a volcanic ash layer, geologists can study the materials in that ice core layer for clues about climate conditions at that time. The half-life of your kernel-popcorn material is the time necessary for half of the given kernels to become popcorns.

    radiometric dating lab exercise-83radiometric dating lab exercise-12radiometric dating lab exercise-52

    It makes no sense at all if man appeared at the end of billions of years.

    By extension, this experiment is a useful analogy to radioactive decay and carbon dating.

    Students use M&M’s (or pennies and puzzle pieces) to demonstrate the idea of radioactive decay.

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