This is a great thing you're doing. Kudos.
The paracord bracelet is a good idea; you might consider some kind of laynard (for compass, whistle, &c) as an alternative, for the sake of short attention spans or a lack of dexterity. Basic fire building/making skills would also be useful, and fun, and could be done as an alternative to the alcohol stove. Impromptu/emergency shelter building (ie: lean-to from a ground cloth or cheap "emergency blanket") would also be fun and informative; using the appropriate materials can also help with the Leave No Trace philosophy. First Aid is good stuff and that may be a good time to cover the basics concerning being lost and what-not: staying in one place, using that whistle, &c.
For something a little more advanced: depending on the local flora and fauna, and your available resources, some simple plant/animal identification (done in small groups?) could be done with colored handouts and descriptions (those that are easily recognizable, of course).
IMO, considering your audience, keep the projects/lessons simple, fun, and short (with your experience with kids, you surely know this already). Scaffolding the "lessons" is good if you're meeting with the same group over several sessions.