The 5/6 class created an experiment to study the effects of hand washing on the spread of disease. They covered their hands in purple paint, which represents the presence of germs. One at a time, students were blindfolded and then allowed to wash their hands.
The results were quite revealing! After 2 seconds, 99% of the paint (germs) remained, after 7 seconds about 50% remained, and after 10 seconds 40-50% still remained.
This led to an interesting discussion about the importance of proper hand-washing techniques. How much time do you normally take to wash your hands? Hmmm....
Studying Infectious Disease
Posted on March 24th, 2010
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