This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can change the size of a shadow by moving an object closer to or farther from the light; and, you can change the shape of a shadow by turning the object. Exploring Shadows is one unit in the Peep Event Kit, which also offers explorations of Structures and ramps, respectively. The guide provides an agenda for a 1-hour science event, a customizable flyer, family handout (English and Spanish) and activity handout (English and Spanish). Learners can view a related Peep and the Big Wide World video story before or after the activity.