Activity: Light a fire or a candle and allow the kids to feel the head of the flame. Don't actually burn them! (the point is not to actually experience what Abinadi experienced, just to get an idea of what he experienced).
Make family scripture time productive. Get the kids excited. If kids can see how the Book of Mormon applies to them and if reading the Book is FUN, you might hear, "Is it time to read yet?", rather than, "Do we have to?" We are counseled to SEARCH the scriptures, not just read them. It takes preparation to do that with children. This is the preparation that I've done. Now I have it for reference next time. And you do too. Comments welcome.