Laboratory Safety Rules and Procedures Table Review

Lab Safety Question Approved eye protection (such as goggles) are worn in the laboratory If you wear contact lenses in the school laboratory, Answer any time chemicals, heat, or glassware are used take them out before starting the lab/tell your teacher If you do not understand a direction or part of a lab procedure, you should ask the instructor before proceeding After completing an experiment, all chemical wastes should be disposed of according to you instructor's directions discuss the issue with your instructor If a lab experiment is not completed, you should You are heating a substance in a test tube. Always point the open end of the tube You are heating a piece of glass and now want to pick it up. You should You have been injured in the laboratory (cut, burn, etc.). First you should When gathering glassware and equipment for an experiment, you should: a) read all directions carefully to know what equipment is necessary b) examine all glassware to check for chips or cracks. c) clean any glassware that appears dirty away from all people use tongs tell the science instructor at once a) read all directions carefully to know what equipment is necessary b) examine all glassware to check for chips or cracks. c) clean any glassware that appears dirty a) lubricating the tubing with water or You want to place a piece of glass tubing into a rubber stopper after glycerin b) using a towel or cotton gloves for the tubing has been fire polished and cooled. This is best done by: protection c) twisting the tubing stopper carefully Personal eyeglasses provide as much protection as: a) a face shield None of the above b) safety glasses c) splash proof chemical goggles Long hair in the laboratory must be tied back, kept out of the way The following footwear is best in the laboratory closed-toed shoes a) loose clothing b) dangling jewelry c) In the laboratory, the following should not be worn: sandals Horseplay or practical jokes in the laboratory are always against the rules If a piece of equipment is not working properly, stop, turn it off, and the science instructor tell If an acid is splashed on your skin, wash with plenty of water When you finish working with chemicals, biological specimens, and wash your hands thoroughly with soup and other lab substances, always water True or false: Hot glass looks the same as cold glass true True or false: All chemicals in the lab are to be considered true dangerous True or false: Return all unused chemicals to their original false containers True or false: Work areas should be kept clean and tidy true True or false: Pipets are used to measure and dispense small amounts of liquids, You should draw the liquid into the pipet using false your mouth True or false: Laboratory work can be started immediately upon false entering the laboratory even if the instructor is not yet present True or false: Never remove chemicals or other lab equipment from true the laboratory. True or false: Chipped or cracked glassware is okay to use false True or false: Read all procedures thoroughly before entering the true laboratory True or false: All unauthorized experiments are prohibited true True or false: You are allowed to enter the chemical false preparation/storage area any time you need to get an item True or false: Laboratory aprons should be worn during all lab true activities True or false: It's okay to pick up broken glass with your bare hands false as long as the glass is placed in the trash True or false: Never leave a lit burner unattended true