Haven't met a baptist kid yet that knows the difference between venial sin and mortal sin.
Those are terms you won't find in the Bible... I mentioned "Bible knowledge", not "Catholic knowledge" ... I am sure that an Orthodox kid could smack us both in knowledge concerning St. John of Chrysostom. I am talking about things like "Why did Moses do ..." "What was the name of Lot's wife and why was she turned into a pillar of salt?" that sort of thing.