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Project-Learning

Project-Learning. Under which situation do we use which brand of plaster?? . Member list. Teacher Adviser : Tam Wing Ching Leader : Chong Maan Yu (4) Member : Chang Lok Yu (2) Chow Suk Shan (5) Ho Chung Yan (7) Hui Po Yan (8) Leung Chui Shan (11). Introduction:. Usage of plasters :

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Project-Learning

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  1. Project-Learning Under which situation do we use which brand of plaster?? 

  2. Member list • Teacher Adviser : Tam Wing Ching • Leader : Chong Maan Yu (4) • Member : Chang Lok Yu (2)Chow Suk Shan (5)Ho Chung Yan (7)Hui Po Yan (8)Leung Chui Shan (11)

  3. Introduction: • Usage of plasters : • related to our daily life. • allow the wound to breathe and help the natural healing process.

  4. Factors to be considered when doing the experiments • Absorbency • Ventilation • Force degree • Waterproof • Viscosity

  5. ~Waterproof Experiment~ Aim • test the cotton if it could prevent the incoming water. 1.Formed the two groups

  6. ~Waterproof Experiment~ Results:

  7. ~Waterproof Experiment~

  8. Aim test which plaster could absorb the largest amount of dust ~~Viscosity Experiment~~

  9. ~~Viscosity Experiment~~ put the plasters on some wooden stickers and placed them near the windows.

  10. First experiment: our classroom was so clean, we couldn't found a lot of dust Second experiment: there was too a lot of dust, we couldn't find different between the plasters Viscosity Experiment( failed )

  11. Aim: test the cotton’s absorbency. Why? one of the important features Gentian violet solution is easy to show the results clearly. Steps: drop drib of gentian violet solution to the each plasters’ absorbent cotton. Wait for 2 minutes put one paper cover the plasters and one paper at the bottom to absorb the extra solution. Absorbency Experiment

  12. ~Absorbency Experiment~

  13. Absorbency Experiment

  14. Results: 1: Adhesive Plasters. 2: Banitore Protective Plaster 3: Hansaplast 4: Standard Bandage 5: Watsons Plasters 6: Band Plus ~Absorbency Experiment~

  15. used spring scale instead of by hand (more accurate and easier to measure.) Affording weight higher ---tensility is better put a clip at one side of each plaster Pull Experiment

  16. Pull Experiment • the other side was connected to a spring scale pulled the plaster violently

  17. Pull Experiment (Results) *=The easiest to pull. ******=The stickiest. #= the worst (the most change in appearance.) ######=The best. (Just small change in appearance)

  18. Pull experiment (failed) • Use different afford power (Newton) -------unfair (a big mistake)

  19. ~Pull Experiment2~(Forced Degree) • set the weight, 25N • pull the plasters with this weight

  20. ~Pull Experiment2~(results)

  21. ~Pull Experiment2~results #= the worst (the most change in appearance.) ######= the best (just small change in appearance) Hansaplast maintains the first position in both experiments

  22. Ventilation Experiment Aim: • test the plasters’ ventilation Why? • it will affect the wound to breathe or the healing.

  23. Ventilation Experiment Steps: • 1. drop 2ml alcohol into each test tube • 2. cover the test tubes with the different plasters’ cotton. • 3. put all the test tubes near window *alcohol’s volatility is better than the others

  24. Ventilation Experiment(failed) • not enough time • dangerous (by heating ) • didn't have other methods. *Failed the 2nd time --due to atypical pneumonia • (use water to do the second experiment)

  25. Order:Name Waterproof Absorbency Pull Average Place in a competition Band Plus 1 6 6 4.3… 4(WORST) Handsaplast 2 3 1 2 1 (BEST) Watsons 3 5 5 4.3 4(WORST) Banitore 4 2 2 2.6… 2 Adhesive Plasters 5 1 4 3.3… 3 Standard 6 4 3 4.3… 4 (WORST) ~Conclusion~ If the number is small, it has the best performance in this category. --- failed two experiments (viscosity and ventilation).

  26. Arrangement 1:Handsaplast 2:Banitore 3: Adhesive Plaster 4: Standard : Watsons : Band Plus Mistakes: failed three experiments -no enough time --environmental errors ---our mistakes (couldn’t concentrate the problems to solve) We are so sorry that we could not give you the exact answers!! ~Conclusion~

  27. Advice: Standard & Adhesive Plasters for fingers (contacted with water---good at waterproof ) Adhesive Plasters for wound is quite large and outpour blood (absorb blood rapidly.) We hope these advise will be useful for you!! ~Conclusion~

  28. ~Reference~

  29. ~E-mail address~ ktgss_3d02@yahoo.com.hk

  30. The end !

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