Lab Safety

1. Lab Safety • You will be doing many laboratory activities, which require the use of hazardous chemicals and expensive lab equipment. • To ensure a safe science classroom, a list of expectations has been developed and provided to you in your student safety contract. These rules must be followed at all times!!!

2. Be responsible at all times. • No horseplay, practical jokes, • pranks, etc. • Read through the directions and • ask questions if you do not • understand…better safe than sorry • Follow all instructions carefully • Do not play with the lab equipment • Food, Drink, Gum, or candy are • not allowed during labs.

3. instructor accident • 1. An _________ must be present during the performance of all laboratory work. • 2. Report any __________ to the teacher 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. minor reading directions modification

4. spill approved 4. You are not allowed to do anything in the lab that is not by the instructor. 5. Use only those materials and equipment _________ by the instructor. authorized immediately 6. Inform the teacher ____________ of any equipment not working properly. spill 7. Clean up any nonhazardous _______ on the floor or workspace ____________. immediately

5. eye protection 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. activities

6. carry group 9. Never _______ hot equipment or dangerous chemicals through a ______ of students. 10. Check ______ and equipment instructions carefully. Be sure correct items are _______ in the proper manner. 11. Be aware if the _________ being used are hazardous. labels used chemicals

7. taste specifically 12. Never ______ anything or touch chemicals with the hands, unless __________ instructed to do so. waving 13. Test for odor of chemicals only by ______ your hand above the container and sniffing cautiously from a _________. distance 14. Eating or drinking ____ the laboratory or from laboratory equipment is _____ permitted. in not

8. 15. When diluting _____, always pour acids into _______, never the reverse. Combine the liquids slowly while stirring to distribute heat buildup throughout the mixture. acids water

9. location • 16. Know the _________ of the emergency shower, eyewash station, fire blanket, fire extinguisher and exits. • 17. Know the proper fire and earthquake drill _____________. • 18. Roll long sleeves above the _______. Long, hanging necklaces, bulky jewelry, and excessive and bulky clothing should not be worn in the laboratory. • 19. Confine long hair during a __________ activity. procedures wrist laboratory

10. Keep the lab and science room neat and organized. Notify the teacher (Ms. Holley) Immediately of any unsafe conditions or accidents that occur during the lab!!!

11. Wash your hands after labs that involve chemicals.

12. Safety Symbols

13. Disposal Alert This symbol appears when care must be taken to dispose of materials properly.

14. This symbol appears when there is a danger from a microorganism such as bacteria, protists or fungi. Biological Hazard

15. Open Flame This symbol appears when an open flame could cause a fire or explosion

16. This symbol appears when you should use caution handling hot objects. Thermal Safety

17. Sharp Object Safety This symbol appears when you will be working with sharp objects and your skin could get cut.

18. Fume Safety This symbol appears when chemicals or chemical reactions could cause dangerous fumes

19. Clothing Protection Safety This symbol appears when substances could stain or burn clothing

20. This symbol appears when you will be working with an open flame. Fire Safety

21. Eye Safety This symbol appears when an eye danger exists. Safety goggles should be worn during the experiment

22. Poison Safety This symbol appears when poisonous substances are used

23. Chemical Safety This symbol appears when chemicals that you will be using can cause burns or can absorb through the skin and cause harm

24. Laboratory Equipment

25. Beaker Used to hold and heat liquids. Multipurpose and essential in the lab.

26. Used for heating and exposing items to flame Bunsen Burner

27. Crucible used to heat small quantities to very high temperatures

28. Used to heat and store liquids. • The bottom is wider than the top so it will heat quicker because of the greater surface area exposed to the heat. Erlenmeyer Flask

29. Evaporating Dish used to heat and evaporate liquids

30. used for heating substances that need to be heated evenly • The curved bottom allows the heat to distribute through the liquid more evenly Florence Flask

31. used to target liquids into any container so they will not be lost or spilled Funnel

32. Used to Measure mass Triple Beam Balance

33. Spatula used for moving small amounts of solid from place to place.

34. Mortar and Pestle used to crush solids into powders for experiments

35. used for moving small amounts of liquid from place to place. • They are usually made of plastic and are disposable Pipette

36. used to hold items being heated Iron ring Ring Stand

37. Test Tube Brush used to easily clean the inside of a test tube.

38. used to hold test tubes when they are hot and untouchable Test Tube Holder

39. used to hold test tubes while reactions happen in them or while they are not needed Test Tube Rack

40. Tongs used to hold many different things such as flasks, crucibles, and evaporating dishes when they are hot.

41. used to measure one specific volume. They are mostly used in mixing solutions Volumetric Flask

42. used to accurately measure out volumes of liquid chemicals Graduated Cylinder

43. Forceps Used to pick up small solid pieces Of chemicals

44. Wire Gauze used to support a container (such as a beaker or flask) during heating. When the Bunsen burner flame is beneath it, the wire gauze helps to spread the flame

45. Medicine Dropper Used to Measure small Amounts of Liquid by drops