learned about matterlearned about atoms and moleculeslearned about the various states in which matter exists learned about matter and chemical changelearned about common materials and their useslearned about examples of chemical change in your everyday lifelearned about hazardous household product symbolslearned about how to safely handle hazardous hazardous productslearned about WHMISlearned the symbols that show the possible harm of various types of hazardous materialslearned about some of the chemical reactions that are common in some various work environmentslearned about workplace safety