GeoTimescale 2 (app)

PDF versionPDF version
Sunrise at the Grand Canyon

ERN Item Type: 

  • Curriculum Materials


Tasa Graphic Arts, Inc.


Need a quick reference to the geologic time scale of Earth's history? Try out out Free geotimescale 2 app! Find out, for example, when dinosaurs ruled the world or when reptiles first appeared. This is an excellent reference for students, educators, professional geologists, or anyone interested in geology. There are two different views features: Geologic Time Scale With and Without Ages. The app is completely self-contained. No internet connection requires. Ideal for field use. 

Grade Level: 


Earth Science Big Ideas: 

Is this tagged to NGSS by the organization?: 


NGSS Crosscutting Concepts: 

NGSS Disciplinary Core Ideas: 

NGSS Science and Engineering Practices: 

NGSS Performance Expectations: