Looking at germs under UV light

We did a Science experiment today at school where we examined our hands under a UV light to see the importance of good handwashing. We used glow powder mixed with moisturizer to make a paste. Then we put a tiny bit of this paste on our hands and looked at it under a UV light in a dark box. It glowed in the dark! This represented germs on our hands. We then washed our hands really well for 20 seconds and re-examined them under the UV light. Everyone obviously did a great job on the handwashing as there wasn’t a trace of the glow paste left! Well done everyone and keep it up!