Landmarks - identify landmarks with this online activity. An atlas or an encyclopedia may be useful to help you with this one.
Insects - a different way of learning about insects with this educational game. Great fun on your own or give it a try with a friend.
Unscramble categorize - categorization is a valuable learning curb and used in everyday life situations. A fun way to learn categorization with this online activity.
Crossword - learn some interesting words. A dictionary may be required to complete this activity successfully. Great for gifted students and those who want a serious challenge.
Word meanings - learn a variety of interesting words. A dictionary may be of help here. Try it alone or with a friend.