I have a good friend

Dear students, do you know why you should use soap when washing your hands? This is because we have a lot of bacteria on our hands. When washing your hands, if the light is washed with water, the bacteria can only be washed halfway. Only when washed with soap, the bacteria can be washed off.

Classmates, you will definitely ask: How do you know this truth? Yes, how can I know? Because I made a good friend today - it is "100,000 why." From there, I know a lot of knowledge.

If the students also make friends with it, it will have endless knowledge to tell you.

Fourth grade: Pan Jiayi