Fun and easy glass density lab that has students calculate the density of six unknown glass samples. The equipment needed are graduated cylinders, beakers, balances and 6 different glass samples. I recommend broken Pyrex lab equipment, marbles, large glass beads or even broken glass from car windows or the windshield. The lab can be quickly altered for use in crash scene investigations for Law Enforcement or even chemistry! Included are a copy of the lab in word and pdf as well as teacher instru