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Lunar Phases Lab

Title "Moon Phase" with "waning gibbous" selected and a partially illuminated moon with the darker crescent on the right. Bottom text "84.5% illuminated" and "time since new moon: 18 days, 10 hours".
Lunar Phases Lab
NASA
Levels
  • intermediate
  • advanced
NGSS
  • ps2
  • ess1
Big Ideas
  • big_ideas_1.1
Heliophysics Topics
  • lunar_phases

This interactive lets learners explore how the Earth-Sun-Moon geometry gives rise to the phases of the Moon as seen from Earth. Includes student guide and background information for teachers.