I'd look at it this way. I doubt very much they are expecting most kids to do some sorta thorough indepth analysis and research to whatever the subject matter is...but are likely doing a few things with this project.

Firstly, they are introducing kids to the fact there is a world outside of West Virginia, or w/e a person may live. This is a good start. I remember my first assignment of this sort was on Mexico.

Secondly, I think at this early age they also can get good understanding of a parents commitment to help. Will the parent do all the work? Will the child? Will it be a collective deal?

I know with mine...I had to wrestle the project back from my dad cuz he was more then eager to help as he once went to Mexico and got drunk for a month and still had pictures of it lol