Memory Game GHS SymbolsOnline version A game to help aid in learning the GHS symbols. by Andrew Guertler Irritant (minor health dangers such as irritants and minor toxins) Health Hazard (dangerous short term or prolonged health problems) Environmental Hazard Explosive Corrosive Acutely Toxic (Severe health impacts even in small amounts over short time, deadly) Gas Under Pressure Oxidizer (chemicals that act like oxygen and are highly reactive, likely to cause fire) Flammable (Can catch fire)