Quote Originally Posted by llamatron
Wikipedia is a excellent starting point for learning about a topic as it provides a fairly quick overview of the subject and will usually link to further external reading and references. It's not good enough to reference or for anything too technical though.
In other words, not good for any real serious research.

As with any form of research make sure that you use more than one independent source of information (I would recommend at least three sources), and don't forget to cite your sources in your bibliography so that your audience (teacher) can cross-check the authenticity of your facts (or at least find out where you got the information from and see how accurately you've presented them)