How about --

class structure in your town or school?
prejudice about a particular ethnic group?
classroom group projects?
perceptions about authority figures?

sorry i wrote in dat language
i need to do a project in sociology for 20 marks
and i am not able to decide on a topic
and the project also has to include a survey or 30-40 answered questionares
plz plz plz plz help
its urgent
i'm writing this question again

How about doing one on student attitudes toward these types of projects or homework in general? It is better if you pick a topic that interests you.

I hope this helps a little more. Thanks for asking.