It's about two weeks before my course starts, and I'm looking to find a new experiment; if anyone still remembers the chocolate milk and milk experiments with sugar in, they were alot of fun for me and I hope people enjoyed them as much as I did. https://www.physicsforums.com/showthread.php?t=111458&highlight=milk So can anyone suggest something that's not obvious, but an experiment to test it that would be fairly easy to set up. At the moment I have a few ideas: for example: what food type goes off first, using high protein, fat and sugar and carbohydrate and fibre foods to see which stay fresh the longest. or maybe an experiment involving my dog, I'm kind of stuck on what to do. If anyones interested in a little light hearted experimentation - under scientific conditions of course - well as close to science as I can get - please suggest any ideas.