 What's the difference between hazard and risk? The two are sometimes used interchangeably, but when it comes to your safety, you might just want to be clear whether they're the same thing or not. When it comes to health, hazard is the possibility of something causing harm, while risk is the probability of harm occurring. Take a bottle of bleach. There's always the possibility of someone doing something stupid with it. And until they do that stupid thing, it's a hazard, not a risk. And whether the bleach is in the cupboard, on a shelf, or locked in an impenetrable vault, the hazard remains. Of course, as soon as someone does do something really stupid like drink the stuff, there's a real probability of them harming themselves. The hazard is transformed into a risk. Standing on the edge of a tall building is hazardous. Stepping off the edge is a risk. A hammer sitting on a workbench is a hazard. Using it is a risk, especially if you're cack-handed. A container of gasoline is a hazard. Pouring it while holding a candle is a risk. Of course, there's more to it than this, but the bottom line is that there's always something else that's needed to change a hazard into a risk. To find out more about hazard and risk and how they're related, check out some of the other videos on risk flights. Stay safe.