Health: Handwashing

In health, both kindergarten and first graders have learned about the importance of handwashing.  Part of our lesson included a video.  The students in the video conducted an experiment.  First, they rubbed their hands all over the floor.  Then, one student rinsed his hands with cold water.  Another student washed hands with warm soapy water.  The third student didn't wash or rinse his hands.  Then, each student placed his/her fingers into a petri dish, which was then allowed to grow for three days.  The bacteria on each petri dish was fascinating.  The cleanest was, of course, the student who washed with warm water and soap.  Next was the cold water rinse, and the highest bacteria growth was the student who didn't rinse or wash his hands.