Modulo
Mystery Doug
Mystery Doug turns kids’ big “why” questions into short, satisfying science lessons. In each free video, Doug tackles a real question submitted by a child—like “Why do we have eyelashes?” or “Could a volcano pop up in my backyard?”—using simple explanations, visuals, and demonstrations that work well in a living room or classroom. As part of the broader Mystery Science ecosystem, the videos are designed as curiosity sparks and often come with optional discussion questions or extensions for deeper exploration. Parents and teachers appreciate the calm, friendly tone and the way episodes model how to think through a question step by step. Many videos are free without an account, with more available through paid Mystery Science memberships. Use one as a weekly “Question of the Day” and let your child draw, write, or talk about their own theory before hitting play.