The graphs below illustrate our "hand germ" data.
We started out with VERY germ covered hands (at 100% germs) and 0 seconds (we had not washed our hands yet).
After applying germ lotion, the students washed their hands for 5 seconds. We then analyzed their hands with the black light and estimated the percent of germs left on their hands. We repeated this procedure 3 more times, until the students had washed their hands for a total of 20 seconds.
Read my Hand Washing Post!
THE GIRLS:
THE BOYS: