Entomologists, like many other types of scientists, will often share their scientific findings with the public. This is especially true for entomologists, who engage specific audiences, such as extension programs that target farmers, for example. But those focusing on K-12 classrooms are less well studied. Here, we conducted a scoping review to search for all relevant publications, and from those determine (1) the characteristics of K-12 entomology outreach efforts and (2) opportunities for improvement based on identified characteristics. The search of five databases yielded 42 relevant publications. Analysis of those publications identified the following characteristics of K-12 outreach efforts: These publications are most often published in educational journals, they are most often reflective, and they rarely evaluate the interventions employed. We suggest that the practice of K-12 entomology outreach benefits from (i) publishing in entomology-focused journals, (ii) including non-academic authors, (iii) evaluating interventions, (iv) including student data, and (v) considering elements of diversity and inclusion.