Watching out for germs

We have been looking at hygiene and why we need to wash our hands regularly.  We conducted an experiment with 3 slices of bread. 

The top slice was touched with my freshly washed hands.

The middle slice was touched with a child's unwashed hands

The bottom slice was touched by all the children

We were amazed at how mouldy the middle and especially the bottom slice have gone. This photo was on day 6.