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Laboratory Safety: It’s not a matter of if, but rather, when

Laboratory Safety: It’s not a matter of if, but rather, when. Think Fast. How many students should be in a science laboratory? What does MSDS stand for? What has MSDS? What basic safety equipment should be in every lab? What kind of fire extinguishers should most labs have?

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Laboratory Safety: It’s not a matter of if, but rather, when

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  1. Laboratory Safety:It’s not a matter of if, but rather, when

  2. Think Fast • How many students should be in a science laboratory? • What does MSDS stand for? • What has MSDS? • What basic safety equipment should be in every lab? • What kind of fire extinguishers should most labs have? • When should goggles be worn? • What kind of goggles should be worn? • What are the 4 classes of chemical hazards? • What is a chemical hygiene plan?

  3. Think Fast • How many students should be in a science laboratory? 24 • What does MSDS stand for? Material Data Safety Sheets • What has MSDS? All chemical products • What basic safety equipment should be in every lab? Fire extinguisher, fire blanket, shower, eye wash • What kind of fire extinguishers should most labs have? ABC tri-class chemical • When should goggles be worn? Any time fire or chemicals are used • What kind of goggles should be worn? ANSI Z87 (American National Standards Institute) • What are the 4 classes of chemical hazards? flammability, corrosivity, toxicity, reactivity

  4. 9. What is a chemical hygiene plan? A comprehensive plan for identifying and dealing with chemical hazards including lab rules, procedures, chemical procurement, storage, distribution, environmental monitoring, housekeeping, maintenance, inspections, records, signs & labeling, spills & accidents, training & information, waste disposal and safety recommendations.

  5. Things you should do before the students arrive. • Check for basic safety equipment (extinguishers, blankets, showers, goggles, eye wash). • Check for mercury thermometers. • Organize chemicals appropriately. • Talk to administration/dept. chair about mystery substances. • Make sure chemicals are secure from students. • Find out where the nearest phone is. • Familiarize yourself with the MSDS for the chemicals you will have students use. • Ask about the school’s chemical hygiene plan. • Check the ventilation of your room. • If you use bases, make sure you have acetic acid available; acids, sodium bicarbonate; bacteria or DNA, 5% disinfectant or 10% bleach. • Know where your master cut-off switches/valves are

  6. Flinn Catalog • When you have an official teaching position & school address, request a Flinn catalog: Flinn Scientific P.O. Box 219 Batavia, IL 60510-0219 http://www.flinnsci.com/

  7. Science & Safety: Making the Connection

  8. Chemical Storage

  9. Cases • The authors talk about teaching by means of “tricks of the trade” vs. thoughtful practice. What is the difference? • What is a case? How is it different from a case study? • What do the authors mean by context? • How does a case-based approach to exploring teaching relate to or reflect constructivism? • What are open and closed cases?

  10. Case 11.2 • In what ways was Ms. Lendell an effective mentor? • How can a student teacher develop his/her own style with a “overly supportive” cooperating teacher? • Check out Julie Guess-Newsome’s prioritized list of teaching concerns (p. 282). What is your reaction to this list? Do you agree that teachers can only work on one thing at a time?

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