Tuesday, January 16, 2018

Half-Life

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 determine the age of a substance.

Activities:
- Submit The Geologic Timescale slideshow Notetaker (slideshow) p 86-87;  Using Fossils to Sequence Geologic Events Activity p 88; Exploring Geologic Time (ucmp weblink) p 89
- Tableshare 11.10 Radiometric Dating of Rocks Notetaker (weblink) (pdf) p 93; 11.9 Radioactive Decay as a Measure of Age Notetaker (weblink) (pdf) p 92; Radioactive Decay as a Measure of Age Slidehow Notetaker (slideshow) p 91; Half-Life of Licorice Nice Bar Graph Activity p 90
- Bozeman Science Radiocarbon Dating video
- 11.10 Radiometric Dating Slideshow Notetaker (slideshow) p 94-95
- Half-Life of Licorice Worksheet p 90

Homework:
Complete Half-Life of Licorice Worksheet p 90; 11.10 Radiometric Dating Slideshow Notetaker (slideshow) p 94-95

Due: The Geologic Timescale slideshow Notetaker (slideshow) p 86-87; Using Fossils to Sequence Geologic Events Activity p 88; Exploring Geologic Time (ucmp weblink) p 89

Coming Up:
Half-Life
Relative and Absolute Dating Test: possibly 22-23 Jan2017

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