So I have been spectulating science projects for roughly a year. Doing calculations from how money I will need from materials to specifics. I have tried to do Particle Accelerators, Force Fields, and a model to present how time is stretched (Einstein ;) ) My question is what other ideas do you guys/girls have that could be interesting and not simple Baking soda + vinegar stuff. Please take in to account that I am a sophmore, and the income I have for materials are fairly low. So propose ideas!