Little Scientists Houses STEM certification Dedicated to early STEM This interactive map showcases early childhood services that have earned a Little Scientists House certification.These services have demonstrated their commitment to early years STEM and inquiry-based learning.Discover how your service can become a Little Scientists House. Locate a Little Scientists House To view a full list of certified Little Scientists Houses, click the square icon in the top-left corner of the map. Alternatively, click a house icon on the map for contact details of individual services.