So, my science teacher assigned a science fair project worth quite a few points. I was all set to make a simple yet interesting demonstration to get my easy A. Then, my teacher told me that because she likes my magic tricks so much my project has to be on/involve magic. This teacher is really kind and I hate to disappoint her, so I accepted. My current ideas involve the psychology of direction and blind spots, but I'm not sure how I can demonstrate them effectively (while remaining within the scientific method) without a large amount of staging and preparation. I also considered hypnosis but I don't have much experience in that field; the closest I've come is a pseudo-hypnotic trick that I do to convince someone that they forgot their card, backed up by photographic evidence. Any help or suggestions on topics, tricks, or principles would be appreciated! You guys have much more experience, after all.