Grade 9 Students (and all Teachers),
While researching NPO PSAs to model for my classes, I found this recently-produced item from the Canadian Heart and Stroke Foundation. Be careful - it is very powerful. Watch it a few times and pay attention to the soundtrack and how vital it is to convey the message.
Apparently, they have quite a lot of experience with getting the message out. This very different approach went viral a few years ago.
Here's one from Saturday morning TV from a long time ago.