Capstone is a research-based project, where you think of a topic, then think of a question and then think of smaller sub-questions than you do a presentation.
I have had a lot of trouble picking a subject, I went from Navy ships to Navy planes to Navy seals and then to medieval weapons on offense and defense. I’m happy about medieval weapons because it’s something I have liked to do for a long time. I think the weapons are really cool too. It seems that researching is really fun. Or at least to me I think this is going to be the best project in elementary school.