Measure the Earth's Radius with a Nothing but a Stopwatch and Meter stick! (PDF)

PDF versionPDF version
Sun at solar maximum

ERN Item Type: 

  • Classroom Activities

Organization: 

Daryl Science

Description: 

It is possible to measure the Earth's radius -- armed with only a stopwatch, a meter stick and a sunset or sunrise! Keep in mind; this is a demo, not a Fermi-like laboratory investigation. That said, this will yield surprisingly "accurate" results given the kids don't mess up on the two measurements they do have to take.

Grade Level: 

Tags: 

Earth Science Big Ideas: 

Is this tagged to NGSS by the organization?: 

No

NGSS Crosscutting Concepts: 

NGSS Disciplinary Core Ideas: 

NGSS Science and Engineering Practices: 

NGSS Performance Expectations: