Safety

1. Safety Daniel R. Barnes Init 3/13/2014 This presentation is based on the Flinn Scientific “Student Safety Contract” and the Flinn Scientific “Science Laboratory Safety Test” (2002). This presentation is VERY VERY under construction.

2. Student Safety ContractInstructions * Blue or black ink only. This is a legal document. NO PENCIL * Get it right the first time. No changes = no cross-outs, no white-outs, no erasures (can’t use pencil anyway). * Print your first & last name neatly in the blank in the URHC of the backside. * Parents must date their own signature. Do NOT write the date for your parent’s signature, or the whole contract is disqualified. * On the allergy question, say what you are allergic to. * Also list if you have any other respiratory weaknesses in the allergy blanks (asthma, etc.).

3. Title a piece of paper “Safety Notes” (NPD in URHC, of course) Watch the following video. https://www.facebook.com/AsapSCIENCE/videos/1301682066629487/ Now that you’ve watched it, try to write down as many lab safety rules as you can remember from the video. Talk to the members of your table group to see if there was anything you missed or forgot to write. Write those down, now, as well. [Class Discussion]

4. Safety QuizInstructions * Blue or black ink only. This is a legal document. NO PENCIL * You can make mistakes at first, but, as we go over the quiz, you must correct your mistakes. * Any time you change an answer, you must write your initials next to the correction. * You are responsible for making sure that every answer on your safety quiz is correct.

5. Student Safety Contract QuizAnswers 1. Never handle broken glass with your bare hands. 2. Where should your face be when you’re heating up chemicals? About arm’s length away from the flame and the chemicals. 3. If your vision is impaired, always wear glasses instead of contact lenses on lab activity days. 4. What dangerous, liquid, metallic material is present in certain thermometers? Mercury 5. Never return unused chemicals to their original containers.

6. Student Safety Contract QuizAnswers 1. Never handle broken glass with your bare hands. 2. Where should your face be when you’re heating up chemicals? About arm’s length away from the flame and the chemicals. 3. If your vision is impaired, always wear glasses instead of contact lenses on lab activity days. 4. What dangerous, liquid, metallic material is present in certain thermometers? Mercury 5. Never return unused chemicals to their original containers.

7. Student Safety Contract QuizAnswers 6. If a chemical should splash into your eyes or onto your skin, immediately flush with running water for at least 20 minutes. 7. What is the first thing you should do any time an accident or injury occurs? Tell the teacher! 8. Where should your backpack be stored during a lab activity? Away from lab tables, but nowhere that people can trip on them. 9. What must you wear during the ENTIRE lab activity, never removing them except when ordered to by Mr. Barnes? safety goggles 10. Always point test tubes, sharp objects, flames, etc., away from all human beings.

8. Student Safety Contract QuizAnswers 6. If a chemical should splash into your eyes or onto your skin, immediately flush with running water for at least 20 minutes. 7. What is the first thing you should do any time an accident or injury occurs? Tell the teacher! 8. Where should your backpack be stored during a lab activity? Away from lab tables, but nowhere that people can trip on them. 9. What must you wear during the ENTIRE lab activity, never removing them except when ordered to by Mr. Barnes? safety goggles 10. Always point test tubes, sharp objects, flames, etc., away from all human beings.

9. Mr. Barnes, please see to it that each table gets a mini-tour of the eyewash/shower facilities in the back room. (You’d better already know where the brake pedal is BEFORE your first accident occurs, as it were.)

10. Student Safety Contract QuizAnswers 11. What possessions of yours should you bring with you to the lab table? Lab paperwork, a writing utensil, and nothing else. 12. Describe how your person should be attired on lab activity days. Hair tied back, no loose or baggy clothing, no dangling jewelry, no contact lenses, closed-toed shoes (no sandals!), as much skin covered as possible (long pants are better than shorts) . . . 13. Name a place in the chemical laboratory that a student should NEVER go without being specifically ordered to by the instructor. The store room / chemical work room / back room / preparation room 14. Under what conditions is the exclamation, “Code one! Code one!” to be shouted? Human injury . . . or fire . . . etc.

11. Student Safety Contract QuizAnswers 11. What possessions of yours should you bring with you to the lab table? Lab paperwork, a writing utensil, and nothing else. 12. Describe how your person should be attired on lab activity days. Hair tied back, no loose or baggy clothing, no dangling jewelry, no contact lenses, closed-toed shoes (no sandals!), as much skin covered as possible (long pants are better than shorts) . . . 13. Name a place in the chemical laboratory that a student should NEVER go without being specifically ordered to by the instructor. The store room / chemical work room / back room / preparation room 14. Under what conditions is the exclamation, “Code one! Code one!” to be shouted? Human injury . . . or fire . . . etc.

12. Student Safety Contract QuizAnswers 15. Where is the fire extinguisher in your science classroom? How do you properly use the fire extinguisher? In C215, it’s in a little white cabinet next to the fire alarm by the main entry door, SW corner of the room. Stand 8 feet away from the fire, pull the pin, aim the nozzle at the base of the fire, squeeze the handles together, and sweep the nozzle from side to side. 16. Where are the fire blankets in your science classroom? How do you use them? We have no fire blankets in C215. They are used to smother a fire by wrapping a person up in them to cut off the fire’s oxygen supply.

13. Student Safety Contract QuizAnswers 15. Where is the fire extinguisher in your science classroom? How do you properly use the fire extinguisher? In C215, it’s in a little white cabinet next to the fire alarm by the main entry door, SW corner of the room. Stand 8 feet away from the fire, pull the pin, aim the nozzle at the base of the fire, squeeze the handles together, and sweep the nozzle from side to side. 16. Where are the fire blankets in your science classroom? How do you use them? We have no fire blankets in C215. They are used to smother a fire by wrapping a person up in them to cut off the fire’s oxygen supply.

14. Here’s a link to a YouTube video about staining eukaryotic cells. At the VERY END of the video, it shows how stain gets sucked under a cover slip on a microscope slide. This is at least somewhat analogous to chemicals getting sucked underneath a contact lens on a human eyeball. Thus, it is a visual explanation of one of the reasons you shouldn’t wear contact lenses in the chemical laboratory. The main event happens at 1:50 in the video. https://www.youtube.com/watch?v=LnXslXMHeFs NO CONTACT LENSES IN THE CHEMICAL LABORATORY!

15. The link below is to a video where a teacher demonstrates a lot of bad lab safety practices. He makes a brilliant negative example. Watch the video and make a list of all the wrong things he does. https://www.youtube.com/watch?v=cr7roogzM8c

16. The links below were provided by Regina Zurbano. I haven’t tested them all yet. https://www.youtube.com/watch?v=NjJz85bQqdM Safe Science in the Classroom (Taft High students) (7:30) https://www.youtube.com/watch?v=YdYapyzJNsE UCSD Lab Safety  (8:30) https://www.youtube.com/watch?v=cr7roogzM8c Ultimate Lab Safety (classroom) (7:07) Violations revealed in review A high school made video based on an educational rap. Has subtitles.  Pretty good.  only 3:23​ https://www.youtube.com/watch?v=xJG0ir9nDtc Regina D. Zurbano, Ed.D Science Teacher | WASC Coordinator | HHSME Student Adviser Hawthorne High School zurbanor@centinela.k12.ca.us | 310/263.4400 

17. The link below is to a youtube video about the hazards of mercury spills. Thank you, Valeria Juarez, for finding it. https://www.youtube.com/watch?v=svmst0OFDGo&feature=youtu.be

18. In the following video, grease fires blow up in slow motion when disturbed by water being poured in/on them. https://www.youtube.com/watch?v=IFRtuIYJxpQ

19. SCIENCE LABORATORY SAFETY TEST

40. Diagram of C215 Eyewash station EWS FA Emergency shower ES EXIT WDC Waste disposal containers Fire alarms Fire extinguisher FE FA NOT an exit! EXIT There is no fire blanket. Sorry.

41. Diagram of C215 EWS FA ES EXIT WDC FE FA NOT an exit! EXIT Your drawing should look pretty similar to this.

44. Mr. Barnes, please make sure to have each table tour the eyewash & shower facilities in the back room ONCE.

45. Okay, now, underneath the true/false question section, please sign and date your test.

48. Methane CH4