Completion Match each each piece of equipment with its description. Please only put one number in the blank.

Transcription

1 LAB SAFETY AND EQUIPMENT TEST Completion Match each each piece of equipment with its description. Please only put one number in the blank. 1. Used for filtering and for adding chemicals without spilling. 2. Used to transport hot crucibles and to remove their covers. 3. Ring clamps and utility clamps are attached to these so that objects can be held up keeping your hands free. 4. Used to plug up a flask or bottle - can have holes for thermometers and for other probes that may be used. 5. Used to hold objects above a Bunsen burner flame-always used with a triangle to support the object being heated. 6. Used to clean glassware. 7. Used to scoop up small amounts of solid and transfer it from place to place. 8. Used to grind chemicals into powder. 9. Used to strongly heat substances above a flame. 10. Used to cover beakers. 11. Used for mixing and heating chemicals and running reactions - smaller quantities than beakers and flasks. 12. Used with a ring clamp to even out the heat of a flame on the bottom of a beaker and to support the beaker on the ring clamp 13. For adding small amounts of chemicals - usually by drops. 14. A heat source in the science lab that uses natural gas. 15. To hold, mix, and heat chemicals - easier than beakers since the bottom is wider than the top so it will heat quicker. True/False Indicate whether the statement is true or false. 16. While preparing an acid solution, always add water to the acid. 17. You are allowed to enter the chemical preparation/storage area any time you need to get an item. 1

2 18. All chemicals in the lab are to be considered dangerous. 19. Work areas should be kept neat and tidy. 20. If you wear glasses already, you do not need to wear safety goggles. 21. Hot glass looks the same as cold glass. 22. It is advisable to wear contact lenses while working in a chemistry lab. 23. It s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash. 24. Return all unused chemicals to their original containers. 25. Contact lenses should be worn instead of glasses so that your glasses do not get scratched. 26. Laboratory aprons should be worn during all lab activities. 27. Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present. Multiple Choice Identify the choice that best completes the statement or answers the question. 28. Flammable materials, like alcohol, should never be dispensed or used near A. an open door B. a sink C. an open flame D. another student 29. Which of the following is an example of a safe laboratory procedure? A. eating or drinking from laboratory glassware B. tying back long hair and loose clothing C. testing an odor by directly inhaling the vapor D. touching hot objects with your bare hands 30. If an acid is splashed on your skin, wash at once with A. plenty of water B. soap C. weak base D. oil 31. You have been injured in the laboratory (cut, burn, etc...). First you should A. apply first aid yourself B. visit the school nurse after class C. tell the science instructor at once D. see a doctor after school 32. Personal eyeglasses provide as much protection as A. safety glasses. B. none of the above. C. splashproof chemical goggles. D. a face shield 33. If a laboratory fire erupts, immediately A. throw water on the fire B. notify your instructor C. open the window D. run for the fire extinguisher 34. You are heating a piece of glass and now want to pick it up. You should A. use tongs B. pour cold water on it C. pick up the end that looks cooler D. use a rag or paper towel 35. Which precaution should you take when you see this symbol? A. Contents are radioactive B. Wear protective clothing C. Wear heat-resistant gloves D. Do not touch broken glass 36. You are heating a substance in a test tube. Always point the open end of the tube A. toward yourself B. toward another classmate C. toward your partner D. away from all people 37. Which precaution should you take when you see this safety symbol? A. do not touch sharp objects B. wash your hands after the lab C. wear heat- and cold-resistant gloves D. do not touch toxic substances 2

3 38. Which precaution should you take when you see this safety symbol? A. do not touch toxic substances B. wash your hands after the lab C. do not touch sharp objects D. wear heat- and cold-resistant gloves 39. What is the most important safety rule? A. Never work with chemicals. B. Always follow your teacher s instructions and textbook directions exactly. C. Never do experiments that involve flames or hot objects. D. Always use unbreakable glassware. 40. If you do not understand a direction or part of a lab procedure, you should A. try several methods until something works B. skip it and go on to the next part C. ask the instructor before proceeding D. figure it out as you do the lab 41. Which precaution should you take when you see this safety symbol? A. Wear heat-protective gloves B. Do not perform experiment in a warm room C. Do not use open flames while working with flammable materials D. When heating a test tube, point it away from yourself and others 42. The following footwear is best in the laboratory A. shoes appropriate for the weather B. sandals C. closed-toed shoes D. open-toed shoes 43. Approved eye protection devices (such as goggles) are worn in the laboratory A. to improve your vision B. to avoid eye strain C. only if you don t have corrective glasses D. any time chemicals, heat, or glassware are used 44. 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. all of the above D. clean any glassware that appears dirty 45. After completing an experiment, all chemical wastes should be A. dumped in the sink B. left at your lab station for the next class C. disposed of according to your instructor s directions D. taken home 46. Which precaution should you take when you see this symbol? A. watch the teacher carefully and follow what he or she does B. wear goggles if you are performing or observing the experiment C. do not look directly at the experiment D. wear goggles if you are doing the experiment 47. When you finish working with chemicals, biological specimens, and other lab substances, always A. wipe your hands on your clothes B. wipe your hands on a towel C. wash your hands thoroughly with soap and water D. treat your hands with skin lotion 48. Long hair in the laboratory must be A. cut short. B. always neatly groomed C. tied back or kept entirely out of the way with a hair band, hairpins, or other confining device. D. held away from the experiment with one hand. 3

4 Matching Match the safety symbol with its name/hazard. A. B. C. D. E. F. G. H. I. J. K. L. M. 49. Open Flame 50. Thermal Burn 51. Corrosive Substance 52. Clothing Protection 53. Poison 54. Sharp Object 55. Electrical Equipment 56. Disposal 57. Broken Glass 58. Fume 59. Skin Protection 60. Eye Safety 4

5 LAB SAFETY AND EQUIPMENT TEST Answer Section COMPLETION or or 28 TRUE/FALSE 16. F 17. F 18. T 19. T 20. F 21. T 22. F 23. F 24. F 25. F 26. T 27. F MULTIPLE CHOICE 28. C 29. B 30. A 31. C 32. B 33. B 1

6 34. A 35. B 36. D 37. A 38. B 39. B 40. C 41. C 42. C 43. D 44. C 45. C 46. B 47. C 48. C MATCHING 49. C 50. L 51. D 52. J 53. E 54. H 55. B 56. F 57. K 58. I 59. G 60. A 2