DoNow: The half-life of a radioactive isotope is 1 day. If there is 25% remaining from the last measurement, how many days have passed since the amount of the isotope was last measured?
AIM: I can describe how to use radioactive half-life decay to calculate the absolute age of a substance.
Activities:
- Submit I Notice, I Wonder, I Draw (images) p90; Reading Notes 11.9 (Ch 11.9) (pdf link) p91
- Tableshare Reading Notes 11.10 (Ch 11.10) (pdf) (Bozeman Science Radiocarbon Dating video) p93; SSN 11.9 Radioactive Decay as a Measure of Age (slideshow) p92; Half-Life of Red Vine Nice Bar Graph Activity p94
- SSN 11.10 Radiometric Dating (slideshow) p96
- Half-Life of Licorice Worksheet p95
Homework: SSN 11.10 Radiometric Dating (slideshow) p96; Half-Life of Red Vine Worksheet p95
Due Next Class: Reading Notes 11.10 (Ch 11.10) (pdf) (Bozeman Science Radiocarbon Dating video) p93; SSN 11.9 Radioactive Decay as a Measure of Age (slideshow) p92; Half-Life of Red Vine Nice Bar Graph Activity p94
Coming Up:
Radiometric Dating
Age of Earth Quiz ~5 classes away
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