You are always told to wash your hands before you eat. You know you must wash your hands after going to the bathroom. You should wash your hands many times during the day. Do you know how to wash your hands correctly?
Always use soap to wash your hands. After turning on the tap (水龙头) and wetting your hands, you can rub (摩擦) your hands with soap. Soap may not kill all the germs (细菌), but it can wash away the oil on your skin. As the oil is washed away, the germs will leave your hands and go away.
You should wash your hands for 15-20 seconds. How do you know the length (长度) of 15-20 seconds? You can sing ABC Song. By the time you get to the last note, your hands will be clean!
Rub your hands together. You can use one hand to rub the back of the other hand and then exchange two hands. You also need to rub between your fingers. Don't forget to rub under and around your fingernails.
Maybe your hands don't look dirty, but there are germs on them. Germs are too small for you to see. They are on your hands all the time. Many illnesses are caused by germs, so you should often wash your hands.
