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7.06

hands
by

yusra baig

on 26 July 2013

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Transcript of 7.06

Washing My Hands
water
Water Only:

Total wash time
(in seconds) 0 seconds 1 second 5 seconds 20 seconds
Washer #1 4 4 3 3
Washer #2 4 2 2 1
Average 4 3 2.5 2
Cleanliness Score

water and soap
Soap and Water:

Total wash time
(in seconds) 0 seconds 1 second 5 seconds 20 seconds
Washer #1 4 3 2 0
Washer #2 4 4 1 0
Average 4 3.5 1.5 0
Cleanliness Score

not the best graphs in the world :(
water only (right) water and soap (left)
conclusion questions

How do the results of the four trials compare?
well in both trials in zero seconds it was really dirty and also had the same average.
What, if any, errors or inconsistencies may have occurred in this experiment?
if any error had happened then the results would have been differant
What suggestions do you have for improving this lab and minimizing errors or inconsistencies? Be specific.
well first you must always follow directions and be prepared and have your things ready
Based on these results, what is the importance of soap and time for effective hand washing?
well the importance for soap and time is for your hands to be very clean and it can also prevent diseases.
What areas of the hands retained the paint the longest, requiring careful scrubbing to get clean?
Defintley the fingers and sometimes the nails.
Analyze the graphs. What do they indicate about the time it may take to effectively wash your hands?
well you should wash your hands for about 20 seconds to be clean
Describe the various defense mechanisms your body has to fight pathogens, nonspecific and specific. How does not washing your hands properly affect these mechanisms?
well the immune system fights the pathogens when recieving signals and not washing your hands does not affect your mechanism as long as you font touch you face or your nose and mouth.
20

5

1

0
4 3 2.5 2
Y
x
20

5

1

0
4 3.5 1.5 0
Full transcript