Determined to find out where the Sun goes at night, Peep and Chirp get up early and follow their shadows in this entertaining video from PEEP and the Big Wide World. Peep and Chirp follow their shadows all morning, but at noon, the helpful shadows seem to disappear. After a nap, their shadows return. Peep and Chirp resume their journey, but their afternoon shadows seem to be leading them back to the starting point. They investigate what is going on with the Sun and their shadows.

To view the Activity and Teaching Tips for this video, go to Support Materials below. This resource was developed through WGBH’s Bringing the Universe to America’s Classrooms project, in collaboration with NASA. Click here for the full collection of resources.