Fill in the gaps with the words or word combinations given below. flammable, radiation, no open flames, combustible, nonpotable, chemical containers, corrosive, toxic, biohazard, electricity, functional, explosive 1) materials are usually strong acids or bases. they represent a hazard to your skin, and often to mucous membranes through inhalation of vapors. pay attention to the proper storage container for these materials. in addition, these materials are reactive. 2) materials are those which can catch fire readily. 3) this is the symbol for or poisonous materials. 4) this symbol indicates a hazard. 5) this is the symbol for a or a material which represents a threat to cellular materials or living organisms. 6) if you see a sign, this usually implies there is a flammable or combustible material nearby. 7) this sign warns of live 8) this sign warns of materials. 9) the fire extinguisher sign should mark the position of a fire extinguisher. 10) the water sign lets you know the water is not approved for drinking. 11) this symbol accompanies materials. 12) the hazard label is found on it indicates health hazard, flammability, and other cautions associated with the chemical.