The Rock Cycle
http://topex.ucsd.edu/es10/lectures/lecture10/lecture10.html

Lisa Tauxe, Satellite Geodesy


This site from Satellite Geodesy describes the rock cycle, and quantitative ways to estimate how long geological features took to form. Popcorn is used to demonstrate half-life and radio-active decay, which is used to date rocks.

This resource is referenced here:
Subject: Geoscience:Geology:Geochemistry:Radioisotopes
Resource Type: Scientific Resources:Overview/Reference Work
Topics: Solid Earth:Geochemistry:Radioisotopes, Solid Earth