## Germs and Data...

**How Many Seconds Do You Have To Wash Your Hand to Get Rid Of Most Of the GERMS???**

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!

### Our Findings?

- It took approximately 20 seconds to eliminate 90% of the germs on most of the students hands.
- Most of the girls were able to get their germ percent down to under 5%, while most of the boys seemed to get "stuck" at around 10%.
- When shining the black light around we noticed how many "germs" they had transferred to their faces and the door handles. Yuck!

THE GIRLS:

THE BOYS: