1. Lab Safety Mr. Rader

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.

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:

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.

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 non-hazardous _______on the floor or workspace ____________.

6. 8. Wear appropriate ______________, as directed by the instructor, whenever you are working in the laboratory. Safety goggles must be worn during hazardous_________ involving caustic/corrosive chemicals, heating of liquids, and other activities that may injure the eyes.

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.

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

10. 14. Never ______ anything or touch chemicals with the hands, unless__________ instructed to do so. 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.

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 _________________________.

13. 22. Know the _________ of the emergency shower, eyewash and face wash station,fire blanket, fire extinguisher, fire alarm box, and exits. 23. Know the proper fire and earthquake drill _____________. 24. Roll long sleeves above the _______. Long, hanging necklaces, bulky jewelry,and excessive and bulky clothing should not be _____ in the laboratory. 25. Confine long hair during a __________activity.

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

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 _____. Rags, paper towels, or other absorbent materials used in the cleanup of____________ solids or liquids Hazardous/toxic ________ and solids

16. 31. Place books, purses, and such items in the designated storage area. Take _____manuals and notebooks into the___________ area. 32. Students are not permitted in laboratory _________ rooms or teachers’ workrooms without the approval of the___________teacher. 33. Hot and cold glass has the same physical appearance. Determine whether an object is ____ by bringing the_________________ close to the object.

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. 35. Report broken glassware, including___________, to the instructor__________. 36. Operate electrical equipment only in a dry area and with _______ hands. 37. When removing an electrical plug from its socket, pull the _________, not the electrical cord.

18. 38. Treat all animals in the science laboratory __________; that is, with respect and consideration for their care. 39. Always approach laboratory experiences in a _________ and courteous manner. 40. Always __________ the laboratory area _________ leaving.

19. 42. Exercise __________ in using scissors,scalpels, dissecting needles, and other________________ instruments. Pass them with handles ____________ when handing them to other persons. 43. Wash all sharp-edged and pointed instruments __________ from other equipment.

20. 44. 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 __________. 48. Never handle animals in the laboratory unless directed to do so by the ________. 49. Never bring __________ or poisonous________ to school. 50. Never open _________ dishes containing bacterial or fungal growth unless directed to do so by the instructor.

21. 51. Dispose of all discarded bacterial and fungal cultures by ___________ as directed by the instructor. 52. Use the fume hood whenever noxious,corrosive, or toxic _______ are produced or released. 53. Be sure all glassware is ______ before use. Clean glassware thoroughly ______use. Residue may cause errors in new experiments or cause a _______ reaction or explosion.