Can you give me a good topic for an investigatory proj. Like "The use of grape extract as an active component for removing ferrous oxide". The example is not from me, so I can't really use it. I need something posible that isn't proven yet.

It would be helpful, if you explored a question that is significant for you. Have you never asked, "Does A have any effect on B?" Pick a topic that relates to your life. We can't do that for you.