Cards against humanity
We play this with friends. The kids have overheard parts of this game that will make far more sense (and possibly cause some mental scars) in a few years. I'm told that there's a kids version called Apples to Apples.
Never played it.
It's not bad...I played this before Cards against Humanity came out and we had a blast; same concept, far less dirty cards, but as with anything it's as clean or dirty as the group wants to make it. With kids it's good clean fun.
9 and 10 might be a good time to introduce dominos. I played with my niece, 10 at the time, and she enjoyed it, good 'learning' type of game, stringing objects together in a logical manner.