Khan Academy
Khan Academy: Breaking Down Photosynthesis Stages
This video gives an overview of photosynthesis by breaking it down into 2 stages: light-dependent reactions and the Calvin cycle. [4:47]
Khan Academy
Khan Academy: Photon Momentum
In this video, David (and surfer Dan) explain how to determine the momentum of a photon.
Sophia Learning
Sophia: Radiation and Energy: Lesson 1
This lesson discusses the light spectrum and its influence on living things. It is 1 of 3 in the series titled "Radiation and Energy."