Hi, what do you want to do?
Khan Academy
Khan Academy: Light and Photosynthetic Pigments
What is light energy? Here we'll learn about the properties of light and how pigments such as chlorophylls absorb light energy.
PBS
Pbs Learning Media: Earth's Albedo and Global Warming
In this interactive activity adapted from NASA and the U.S. Geological Survey, learn about Earth's albedo (the ratio of reflected vs. incident solar radiation), how pollution alters albedo, and how ice-albedo feedback may accelerate...