How does soap stop the spread of germs and viruses? Explain the science of soap and germs to your kids with Nanogirl and this easy science experiment you can do at home.

Soap is really good at washing germs off your hands as it breaks down the surface tension, meaning the oil on your hands (where the germs stick) is broken down and washed away.

Why not try this experiment at home to help you visualise it and let Nanogirl teach your children why washing your hands with soap is so important - all you need is soap, pepper and water.

For more Nanogirl science experiments and STEM activities for kids, check out www.nanogirlslab.com