So I was curious to see what . gov websites have for kids safety and ran across this website, and from there I ran into truly the purest gem online, this game hosted by the Federal bureau of investigation. Im not going to lie at first I thought it was hilarious, but once I started playing with it. it's actually very well structured, has very nice graphics, and is sort of fun to play with and such. I actually do recommend visiting it here
below is a screenshot of one of the lessons.