"Making Science Splat~tacular!"
Why do we wash our hands? How do germs travel?
Supplies: Hand lotion, glitter, sink, paper towels, soap, water, a helper
Put a drop of lotion on your hands and rub them together. Now add a pinch of glitter in the palm of one
hand. Rub your hands together...does it spread? Touch your helper's hand...Now do you see anything
Get a paper towel and use it to wipe your hands clean of all the glitter. Is it working?
After using the paper towel, try using soap and water to wash your hands. Did the glitter come off?
Explanation: After getting the glitter on your hands, you should have noticed it spreading very easily to
anything you touched, even your helper's hand. When you tried to use a paper towel to remove the
glitter, some of the glitter probably came off, but most of it stayed on your hands. But when you used
soap and water to wash your hands, the glitter came off pretty easily. The glitter is acting the same way
that the germs on your hands act - there are a lot of them, they spread around easily, and it can be
tough to get them off. The difference is that germs are so small you can't see them without a
microscope, so you have to know when you may have come into contact with germs and wash your
If you accidentally touched your mouth, nose, or eyes while doing this experiment, you may have found
glitter getting left behind near these areas. Germs travel the same way and can easily enter your
body if you touch your face with dirty hands, which can make you sick. That's why it's important to wash
your hands before you eat. It is also important to wash your hands after touching something that might
have germs (when you use the bathroom or play outside). If you don't, the germs can easily spread to
more places and to other people and cause sickness.