"THIS IS AN ABSOLUTELY SCIENTIFIC QUESTION"
I personally have two strategies, I give lectures aimed at Children and Young people and I make these lectures available (presentations) for other people to use in other places in world, translating into their own languages, trying to use more images than text.
Tell us what your strategies are, share with RG so that we can have more researchers and that Childrens and Youth people can see that it is a "nice" option to be a researcher and contribute to the development of humanity!
Source links of my documents, there are 7 (seven) documents (Childrens and Young People) within section called Presentations. Hope they can be helpful.
www.researchgate.net/profile/Filipe-Wiltgen/publications