RUN TIME: 50 MIN PL02 Page 1 of 7 POGIL LAB EXERCISE 02 What Makes the Lab a Safe and Effective Place to Do Chemistry? Each member should assume their roles at this time (Table 1). Table 1. Group Member Role Assignments GROUP TYPE -> GROUPS OF THREE GROUPS OF FOUR MEMBER NO. -> 1 2 3 1 2 3 4 Manager + + Reporter + + Recorder + + Reflector + + Technician + Encourager + + SFUC + * + * Each member should assume his or her roles at this time. The manager should encourage the group to read the small introductory paragraph and begin group processing with Item 1. WHAT MAKES A LAB A SAFE PLACE TO WORK? OBSERVATION I: The lab is a dangerous place. There are caustic chemicals, flammable materials and open flames. Chemicals can splash on clothing causing severe skin destruction. There is an extensive use of glass that could shatter causing injury. Fumes could be formed during an experiment and injure the lungs or poison the body. Danger lurks around every corner. 1. Take three minutes and list in Column 1 of Table 2 on the next page as many dangers as you can think of from your experience and reading that might be present in the lab. STOP! Reporters should go to the front board and list three dangers from your list that are not already listed on the board. If there are items on the board that you do not have on your list, add them to Table 2. Do not continue with processing until the instructor directs you to do so. You may, however, begin reading the rules in Page 3. 5 MIN
RUN TIME: 50 MIN PL02 Page 2 of 7 Table 2. Dangers Addressed by the Rules of the Lab. DANGER DESCRIPTION Rule Numbers Example: Caustic, corrosive chemicals 1-5,9,12,20 GAS BURNER OPEN FLAMES SPLASHES SPILLS GLASS SHATTERING TOXIC FUMES CAUSTIC, CORROSIVE CHEMICALS FLAMABLE MATERIALS (EXPLOSIONS) LAB ON FIRE FOREIGN OBJECTS IN EYES WORKING ALONE CARELESS BEHAVOIR IMPROPER USE OF EQUIPMENT IMPROPER USE OF GAS INAPPROPRIATE FACIAL OR HEAD HAIR INAPPROIATE CLOTHES INFECTIONS 2. The group should complete Table 2 (above) in the following manner: a) Make sure your list in Table 2 contains all items on the board. b) Process each rule in turn, one by one, and decide which danger the rule is designed to address and then place the number of the rule in Column 2. (A rule may address more than one danger.) c) If a rule doesn t seem to address any dangers you have listed, then decide what danger the rule is addressing and add it to Column 1. d) If you have a danger for which there is no rule, write a rule to address the danger and add it to the bottom of the list. Take no more than 15 minutes for this activity. +10 MIN
RUN TIME: 50 MIN PL02 Page 3 of 7 LABORATORY SAFETY RULES Lab Dress Code: R1. Lab coats or scrubs are required for all wet labs. Students are to provide their own lab coats or scrubs and may not leave them in the lab. The College is not responsible if protective wear is lost or stolen. The student must be able to remove lab coat or scrub top after the lab session. An individual must consider that a chemical or bacteria may be on the protective wear after use in the laboratory. Bare midriff tops shall not be worn in the lab. Beyond protecting yourself, you might consider that proper lab wear protects your clothes, too. R2. Foot wear: For your safety, wear low-heeled, closed-toed shoes; NO thin canvas sneakers, open-toed shoes, flip-flops or sandals, or shoes with high heels or platforms are allowed during lab time. R3. Attire should cover as much skin as possible; therefore, pants, trousers, or dresses to reach at least mid-calf are required. Bare midriff shirts and blouses are banned from the lab. Do not wear scarves or neckties in the lab. Students wearing attire judged inappropriate by the instructor will not be admitted to lab. R4. Students are required to purchase their own safety glasses or chemical splash goggles and these items must be worn during all wet labs. WARNING: Wearing protective eye wear does not necessarily prevent vapors from contacting the eye and becoming trapped in contact lenses. Therefore, wearing contact lenses under protective eyewear is not encouraged but is left up to the student's discretion. R5. Use gloves or other personal protective equipment as required. Gloves will be provided by the school. (I.e. for working with chemicals, body fluids, dissection specimens, etc.) R6. Long hair (including facial hair) must be properly restrained as per instructors discretion and definition. R7. Dangling jewelry may be required to be removed and placed in pocket or purse as per instructor s discretion. R8. Acrylic nails are flammable and pose a safety risk. They also limit the student s ability to handle certain lab tools and materials. The instructor may ask a student to make a fist to see if indentions remain on the students palm; if indentions remain, the instructor has a right to ask the student to remove or trim the nails. If directions these instructions are not accommodated, the student may asked to leave the lab for the lab activity. Science Lab Safety Rules: R9. If you have special needs, are taking medications, or are pregnant, notify your instructor. R10. Never work in the lab by yourself. +20 MIN
RUN TIME: 50 MIN PL02 Page 4 of 7 R11. Come to lab prepared and on time like your instructor. Read all exercises before starting a lab. The instructor will keep you updated on any changes in procedures or have directions and precautions particular to the day s activities. R12. Know the location of all safety equipment.(emergency Shower and Eye wash, First Aid Kit, Fire Blanket and Extinguisher, Chemical Spill Kits, etc.). R13. Know the location of the Material Safety Data Sheets (MSDS). These are provided by the vendor or manufacturer when chemicals or other items are purchased and contain safety information. R14. Know the location of the nearest exits and evacuation routes. R15. Do not smoke, chew, eat, drink, apply cosmetics, or handle contact lenses in the laboratory. R16. Work only with your own body fluids (urine, saliva, etc.) and heed any special precautions as directed by your instructor. Reusable glassware or utensils that have been contaminated with such fluids should be placed in an appropriate disinfectant or a fresh 10% bleach solution. R17. In the case of a blood spill due to a cut or other accident, your instructor will follow universal precautions related to controlling blood-borne pathogens, quarantine the area, and notify the maintenance department for clean-up. R18. Restrain all loose clothing, long hair (including long beards), and remove dangling jewelry (putting it away, not on the counter) during laboratory procedures. R19. Keep the lab and your work station as uncluttered and clean as possible. Inform your instructor if you notice something that looks out of place or dirty, perhaps from an earlier class. R20. Always use a mechanical pipetting device (called a propipette) -- not your mouth to pipette solutions. R21. Report any accidents, spills, or damaged equipment to your instructor. Follow instructions from the instructor to address the problem. R22. Dispose of specialized waste (i.e. chemicals, broken glassware, sharp instruments, biological, etc.) in containers reserved for that particular kind of waste. R23. Thoroughly wash your hands with soap and warm water before leaving the laboratory or when you come in contact with chemicals. R24. Ask for assistance if you are unsure of what to do or feel uncomfortable with a particular lab. R25. Do not PLAY, JOKE, or RUN in the lab. R26. MINIMIZE DISTRACTIONS in the lab by keeping cell phones, radios, computers, and other electronic devices turned off and stored away. A ring tones or phone conversations ARE distractions. This will also make it easier for you to PAY ATTENTION to what is going on around you. Even if you aren t doing something particularly hazardous at the moment, someone else might be. +30 MIN
RUN TIME: 50 MIN PL02 Page 5 of 7 27. Clean up as necessary when you are finished with day s exercise (work station, glassware, equipment, bench tops, common areas, etc.). 28. Never leave open flames or heated materials unattended. 29. Never remove any chemical substance from the lab. 30. Instructors or other persons responsible for the class should always be in attendance when classes are engaged in particularly hazardous activities as it is their duty to assure that these safety guidelines are adhered to. If no instructor is present, report this to school administrators. Managers should begin processing by reading Item 4 (below) to the group and discussing any questions concerning the directions. Processing should begin when everyone understands what is to be done. Managers should keep the processing time to 10 minutes and then continue to Items 5 and 6. Recorders should present Table 2 to the instructor when the activity is completed. OBSERVATION II: The lab has some protective devices that are there to protect, treat, and/or prevent injuries suffered in lab accidents. Table 3 has a list of these devices. Table 3. Safety Devices that Should be Available in or near the Lab SAFETY DEVICE SAFETY DEVICE 1. Fire extinguishers 2. Fire alarm (If not in lab, closest one to lab and its location) 3. Fire blanket 4. Safety shower 5. Ventilation hoods 6. Eyewash facilities 7. Emergency gas shutoff valve. 8. First aid kit 9. Sharps buckets. 10. Biohazard bins 11. Acid/Base Spill kit 12. Organic Solvent Spill Kit 13. MSDS sheets 3. Figure 1 on the next page is a diagram of our lab room. As a group locate and write on Figure 1 where each of the devices are located. There will be 6 participation points as first prize for the first group that completes and correctly diagrams these safety features. As soon as all of the devices in Table 3 have been diagramed on Figure 1, the Recorder should bring the group diagram and the GRF to the instructor to receive your participation credit. (10 minutes) STOP! Reporters should notify the instructor when the group has finished. At this point all members of the group should complete, sign and remove Appendix A from the back of their exercise. Managers should collect the forms and place them along with the GRF and RRF in the left pocket of the folder. NOTE: Credit for this lab will be given only after the instructor has received the signed copy of Appendix A. +50 MIN
RUN TIME: 50 MIN PL02 Page 6 of 7 Figure 1. Diagram of A60-215. +50 MIN
RUN TIME: 50 MIN PL02 Page 7 of 7 Appendix A Laboratory Safety Acknowledgement Sheet Student s Name (please print) Instructor s Name: Dr. Jerry Sipe Course and Section: CHEM101 20F Date I hereby certify that I have read, understood, and received a copy of the Science Laboratory Dress Code and Safety Guidelines. I also understand that it is best that contact lenses not be worn in the lab, even under goggles, and that I am responsible if I choose to wear contact lenses. Student s Signature Rev 8/19/16