How does the color of the sky change from blue to reds and oranges to black? An illuminating lesson explains how light travels through different mediums using the sun's light as an example. By examining diagrams and illustrations, pupils...

With a little light and a lot of time, you can create some amazing images. This NASA-related task instructs pupils to build a pinhole camera. The lesson provides suggestions for different pictures to try with the pinhole camera...

Students calculate the amount of solar radiation hitting the ground at their school compared to the solar constant. They also repeat the experiment at a water testing site and utilize a light probe to measure the light being reflected...