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