'Stable element' presentation slideshows

Absolute Age

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Absolute Age

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Absolute Age

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The Early Greeks

The Early Greeks. Early experiments (as told by Herodotus) Psammethichus and the kids (7 th cent. BC) Croesus and the Oracles (5 th cent. BC) Both attempts to control conditions of inquiry, but not science as we know it Earliest science (ca 600 BC) in Greece

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317 views • 15 slides

Aim : How can the decay of an organism tell us its age?

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GOLD

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Half-life: Every radioactive isotope has a half-life.

Half-life: Every radioactive isotope has a half-life. This is the amount of time required for one-half the radioactive nuclei to decay into a stable element Isotope half-life radiation carbon-14 5730 years beta potassium-40 1.25 x 10 9 yrs beta, gamma

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Warm up 03-17-14

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Warm up 11/18/13

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Warm up 03-28-14

82 views • 3 slides