The world is a happening place - everywhere you look, things are spinning, freezing, expanding, or bursting, thanks to the laws of physics. By studying matter and energy, physicists have unraveled the mysteries behind all sorts of phenomena, such as why an ice-skater can spin so fast, or what exactly is going on when you pop a balloon. So although physics is indeed serious science, it can also be a blast. Here are five quick experiments guaranteed to wow any budding physicists in your household.