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How Old is Sunlight? Activity

A data table with 3 columns, the columns are labeled with the letters R,L,N. Some numbers are filled in, some are missing.
"How old is Sunlight?" activity
NASA
Levels
  • Advanced (9-12+)
  • Intermediate (6-8)
Material Type
  • Activity/Hands-on
Heliophysics Big Ideas
  • Big Idea 2.3 – The Sun is the primary source of light…
NGSS
  • PS4 - Waves and their Applications in Technologies for Information Transfer
Heliophysics Topics
  • Light
Material Cost per Learner Free
Language English

Worksheet with directions for calculating the age of sunlight coming out of the Sun. Students will imagine a particle that travels a short distance and then collides with another particle. The collision changes the direction of the particle, which causes the particle to take longer to travel the distance.

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“How Old is Sunlight?” Activity

Jun 16, 2025

PDF (1.12 MB)