PhET Interactive Simulation Spoken Tutorials-Assignments Funded by the Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching and National Mission on Education through ICT -------------------------------------------------------------------------------------------------------------- Assignment 1. Estimate ages of all objects in Dating Game screen 2. Correlate age (years) with percentage of unstable nucleus 3. Correlate age (years) with depth at which object found 4. C-14: animal remains; U-238: rocks, objects