Hi,
I would be cautious with presenting this information to children and teens. Harvard Center on the Developing Child does have a fantastic resource library and much of their material is in very accessible language. I would encourage you to emphasize more about self-regulation, resilience, hope, and building capacities. Using Brain States or Dan Siegel's hand model of the brain might also be an effective approach. If you do cover material around trauma and ACEs, be sure to emphasize that anything they have experienced has been outside of their control and is not their fault, as well as that the plasticity of the brain can help them 'bounce back' and trauma is not their destiny.
Community Resilience Initiative has a series of games created by the students at Lincoln High School that might also be appropriate (check out documentary Paper Tigers for more info on the work done at Lincoln High School around ACEs and trauma)
I like this video and it might be age-appropriate for some children/teens: https://www.youtube.com/watch?v=RVA2N6tX2cg
This one might be good as well: https://www.youtube.com/watch?v=up3MZuYkf-g