Geologist and Keystone mom teaches 3rd graders about rocks 

A week after presenting at the Little School, Keystone parent and geologist Mrs. Urbis made a presentation to 3rd graders about rocks — how they’re formed, the different types and the rock cycle.

This lesson also included a hands-on activity of replicating fault lines using Oreos. An educational and delicious treat!

Scroll down for more photos from the presentation.