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