Learning Teaching Resources on

1. Learning & Teaching Resources on Safety in Science Laboratories June 2004

2. Exemplars of Activities Laboratory Safety Rules Eye Protection Safety Information on Chemicals Risk Assessment What if a Laboratory Accident Happens?

3. Laboratory Safety Rules �The biggest danger in the lab is YOU (student)! You are a danger whenever you are either ignorant or careless or both. Remember this because the person most likely to suffer from your mistakes is YOU!� ASE (1996) Safeguard in the School Laboratory, ASE

4. Laboratory Safety Rules Introduction Group Discussion Ask students to discuss and write the rules they should observe in the lab Review the results of discussion Summary Signing a �Safety Contract� and distribute copies of lab safety rules Select safety rules applicable to your class Posters, slogans, websites, quizzes Reference Flinn Scientific's "Ideal" Student Safety Contracthttp://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf �Contracting for Safety� http://www.statweb.org/ACT2/parents.pdf

5. �Safety Contract�

6. Illustrated Safety Rules http://www.mindspring.com/~mfallonsp/safety_rules/

7. Eye Protection Importance of eye protection Illustrated by a student experiment or teacher demonstration on irreversible denaturing of eye-white by acid Discuss on when eye protection should be worn Demonstration/video on the use of eye wash unit

8. Safety Information on Chemicals Know how to locate and understand safety information of chemicals Chemical formula, hazards, safety precautions, emergency, disposal, etc

9. Online MSDS http://www.ilpi.com/msds/index.html http://hazard.com/msds http://www.freyscientific.com http://www.sargentwelch.com http://www.flinnsci.com http://www.fisheredu.com http://www.msdsprovider.net http://www.camd.lsu.edu/msds_search.html http://ptcl.chem.ox.ac.uk/MSDS

10. Risk Assessment An analysis of a practical activity to identify hazards and to take precautions to minimise the risk Involve students in thinking about and discussing safety in real context, rather than just being told what to do Novel experiments in science publications, open-ended investigations and project learning, etc. Have to be checked by teachers

11. Risk Assessment Procedures: Identifying hazards (Materials / Procedures / Equipment) Assessing how likely the hazard will actually cause harm (risk) Deciding what control measures to reduce risk to acceptable level Finding how to dispose of hazardous residues Review Examples #1, #2, #3 References: Safety Handbook, Hazcards, Student Safety Sheets, ICSCs, MSDSs, CLIP (Chem Lab Information Profile), etc.

12. Risk Assessment � Think thrice before you act Hazards

13. Reducing the Risks Using safer alternatives Modifying experimental procedures Reducing the scale of experiments Reducing the concentrations of solutions Using protective measures Wearing appropriate PPE Alasdair Thorpe, Chemistry Review, Sept 2000

14. Risk Assessment Forms Annotate daily used documents (point-of-use texts) e.g. schemes of work, lesson plans, worksheets, textbooks, lab request forms and apparatus A better chance that they will be read and followed Less demanding to accomplish and more likely to be carried out Assessment more likely to be modified when the activities have be be modified Managing Risk Assessment in Science, L196, CLEAPSS

15. What if a Laboratory Accident Happens? Know the proper actions to be taken in case of laboratory accidents Be aware of the nature and causes of laboratory accidents, and the basic safety precautions for prevention 12 adapted cases for discussion Eye accidents (3), fire, heat burn, cut, explosion (2), animal bite, corrosive chemicals (2), toxic gas

16. Microscale Version

17. What if a Laboratory Accident Happens?

18. http://cd.emb.gov.hk/sci

19. Safety in Exploring Science Interactive learning package On-line and CD-ROM versions http://resources.emb.gov.hk/~ses

20. Safety Quiz Questions with feedbacks to both correct and incorrect answers Enable students to evaluate and improve their understanding on laboratory safety Written Safety Test in �Safety Handbook for California Public Schools� http://csmp.ucop.edu/csp/downloads/safety.pdf Wordsearch

21. On-line Safety Quiz Interactive and Interesting MC Questions�Millionnaire Game� http://jasonhk.uhome.net/ Chemistry Safety Quiz http://daphne.palomar.edu/safetyquiz Safety in Hargrave's Laboratorieshttp://www.hargrave.edu/academics/science/safetyCertificate of Completion Fire Safety Quizhttp://www.survivealive.org/quiz.html �Hot Potatoes� create interactive MC, short-answer, jumbled-sentence, crossword, matching/ordering and gap-fill web-based exercises http://web.uvic.ca/hrd/hotpot Laboratory Safety Quizhttp://www.fordhamprep.com/gcurran/sho/sho/students/classof03/index2.htm Laboratory Safety Quizhttp://www.fordhamprep.com/gcurran/sho/sho/students/classof03/index2.htm

22. Other Strategies PowerPoint on Safety facilities and PPE http://www.umd.umich.edu/casl/natsci/slc/modulist.html Self-learning e.g. ????http://www.naturalking.net/exercise.htm Role play Certificates Project work e.g Fire Escape Route Indicator

23. Health, Safety & Risk Student worksheets e.g. Risk assessment in science experiments Safety symbols Can be downloaded in Word format from http://www.chemsoc.org/networks/learnnet/hsr.htm

24. More Learning Activities http://csmp.ucop.edu/csp/resources/curriculum.html

25. Inquiring Safely Terry Kwan & Juliana Texley (2003)Inquiring Safely: A Guidebook for Middle School Teachers, NSTA Entire book at http://www.nsta.org/main/pdfs/store/PB166X2np.pdf

26. Acknowledgement Dr Albert C Cheung (City University of Hong Kong) Ms Chu Suk Ching (True Light Middle Sch of HK) Dr Joseph K Kwan (HKUST) Mr Lee Charn Kau (HKTA Ching Chung Sec Sch) Mr Leung Kar Yau (retired) Mr Lo Kam Cheong (CCC Kei Heep Sec Sch) Mr Mok Ming Wai (United Christian College) Mr Pun Kwong Cheung (SKH Tsang Shiu Tim Sec Sch)

27. Thank you ! Mr W C HO cdosc21@emb.gov.hk Tel 2712 8476