Radiometric Dating Explorer
Apply scientific reasoning to understand how radioactive decay reveals the age of ancient Earth materials and meteorites.
Simulation Controls
Challenge Mode
Analyze an unknown sample from the early solar system.
Rock Sample (Microscopic View)
Parent Isotope
Daughter Isotope
Challenge Mode: Unknown Sample
1. Look at the Parent % below.
2. Hover over the Decay Curve graph to find the Time that matches that Parent %.
Time Elapsed
0.00
Billion Years
Decay Curve (Exponential Law)