This Website is actually the home of one of the other websites I found (posted earlier for Standard 6.1) with games and wanted to share it, because it has several other links and more information on teaching with technology as well as links to several games available on the internet.
This Website has free games for elementary school children; it has the mostly math games, but also has some language arts and geography games. The student's can either play by themselves or play against other people on the site.
This website has games students can play based on grammar topics. It also has pdf downloads. It also has a link on the home page to the Junior version for Elementary students.