1. Laboratory Safety Rules

2. While working in the science laboratory, you will have certain important ____________________ that do not apply to other classrooms. You will be working with materials and apparatus which, if handled carelessly or improperly, have the potential to cause __________________ or discomfort to someone else as well as yourself. responsibilities injury

3. A science laboratory can be a safe place in which to work if you, the student, are foresighted, alert, and cautious. Violating any of the following regulations will result in you being _______________ from class or ______________________ from the class. The following practices will be followed: suspended permanently removed

4. 1. An _________ must be present during the performance of all laboratory work. 2. Report any accident to the __________ immediately, no matter how_________, including reporting any burn, scratch, cut, or corrosive liquid on skin or clothing. 3. Prepare for each laboratory activity by ________ all instructions before coming to class. Follow all _________ implicitly and intelligently. Make note of any _________ in procedure given by the instructor. Complete the _________ before coming to class. Wear appropriate _________. instructor teacher minor reading directions modification Pre-lab footwear

5. 4. Any science project or individually planned experiment must be __________ by the teacher. 5. Use only those materials and equipment _________ by the instructor. 6. Inform the teacher ____________ of any equipment not working properly. 7. Clean up any nonhazardous _______ on the floor or workspace ____________. approved authorized immediately spill

6. 8. Wear appropriate ______________, as directed by the instructor, whenever you are working in the laboratory. Safety goggles must be worn at all times in the lab! eye protection

8. 9. Splashes and fumes from hazardous chemicals present a special danger to wearers of _____________. Therefore, students should preferably wear regular glasses (inside splash -proof goggles, when appropriate) during all class activities or purchase personal splash- proof goggles and wear them whenever exposure to chemicals or chemical fumes is possible. 10. Students with _________________ on hands must wear gloves or be excused from the laboratory activity. contact lenses open skin wounds

9. 11. Never _______ hot equipment or dangerous chemicals through a ______ of students. 12. Check ______ and equipment instructions carefully. Be sure correct items are _______ in the proper manner. 13. Be aware if the _________ being used are hazardous. Know where the material safety data sheet (_______) is and what it indicates for each of the hazardous chemicals you are using. carry group labels used chemicals MSDS

10. 14. Never ______ anything or touch chemicals with the hands, unless __________ instructed to do so. taste specifically wafting distance laboratory not 15. Test for odor of chemicals only by ______ your hand above the container and sniffing cautiously from a _________. 16. Eating or drinking in the ____________ or from laboratory equipment is _____ permitted.

11. 17. When heating material in a test tube, do not ______ into the tube or point it in the direction of any person during the process. 18. Never pour _________ back into bottles, exchange stoppers of bottles, or lay stoppers on the table. 19. When diluting _____, always pour acids into _______, never the reverse. look reagents acids water

12. 20. Wash hands as necessary and wash thoroughly at the __________ of the laboratory period. 21. To treat a burn from an acid or alkali, wash the affected area ___________ with plenty of running water. If the eye is involved, irrigate it at the eyewash station without interruption for ___ minutes. Report the incident to your ___________ ______________. immediately conclusion 15 instructor. immediately

13. 22. Know the _________ of the emergency shower, eyewash and facewash station, fire blanket, fire extinguisher, fire alarm box, and exits. 23. Know the proper fire drill _____________. 24. Long, hanging necklaces, bulky jewelry, and excessive and bulky clothing should not be _____ in the laboratory. 25. Confine long hair during a __________ activity. location procedure laboratory worn

14. 26. Wear shoes that ______ the toes, rather than sandals, in the laboratory. cover 27. Keep work areas ______. Floors and aisles should be kept ______ of equipment and materials. clean 28. Use a burner with __________ caution. Keep your head and clothing away from the flame and turn it _____ when not in use. extreme clear off

15. 29. Use a fire blanket (stop, drop, and roll) to ___________ any flame on a _______ 30. Dispose of laboratory waste as ___________ by the teacher. Use separate, designated containers (not the ___________) for the following: extinguish instructed wastebasket  Matches, litmus paper, wooden splints, ____________, and so on toothpicks  ___________ and waste _____. Broken  Hazardous/toxic ________ and solids liquids person. glass

16. 31. Place books, purses, and such items in the designated storage area. Take _____ manuals and notebooks into the ___________ area. only working 32. Students are not permitted in laboratory _________ rooms or teachers' workrooms without the approval of the ___________ storage teacher. 33. Hot and cold glass has the same physical appearance. Determine whether an object is ____ by bringing the _________________ close to the object. hot back of your hand

17. 34. Remove all ________ glass from the work area or floor as soon as possible. Never handle broken glass with bare hands; use a counter _____ and dustpan. broken brush 35. Report broken glassware, including ___________, to the instructor __________. immediately. 36. Operate electrical equipment only in a dry area and with _______ hands. dry 37. When removing an electrical plug from its socket, pull the _________, not the electrical cord. plug thermometers

18. 38. Always approach laboratory experiences in a _________ and courteous manner. serious 39. Always __________ the laboratory area _________ leaving. clean before

19. 40. Use great care when working with ether or other volatile liquids. Windows and doors should be opened for greatest possible ___________. Be sure that caps or lids of containers used for chemicals are securely __________. ventilation closed. 41. Use the fume hood whenever noxious, corrosive, or toxic _______ are produced or released. fumes

20. 42. Be sure all glassware is ______ before use. Clean glassware thoroughly ______ use. Residue may cause errors in new experiments or cause a _______ reaction or explosion. clean after violent

21. The following actions will result in being dropped from the class: _________ or tossing any object or item in the science classroom or laboratory Throwing

22. _________ of safety equipment including, but not limited to – eyewash stations – ___________ showers – fire extinguishers – _____ blanket Misuse __________ school equipment or ________. Vandalizing ____________ or causing harm to others. Endangering _________ of any materials or equipment from the classroom or laboratory Removal emergency fire furniture