Hangman word game; spelling; abbreviations; contractions; write a media story with sound effects; parts of speech
http://www.netrover.com/~kingskid/hanglist.html
http://classroom.jc-schools.net/basic/la-grammar.html
http://www.spellingcity.com/
There are 27,000+ encyclopedia articles, a dictionary, an atlas, time line builders, more than 20,000 photos, illustrations and maps, a biography center, and more.
http://www.worldbookonline.com/wb/Login?ed=wb