经典科普资源 · Too Small to See
Stop That Germ
Too Small to See What is the smallest thing you can think of? Draw it on a piece of paper. Can you imagine something even smaller? Germs are so itty-bitty that we can't spot them with our eyes alone. Yet, they are around us all the time!
Meet the Germs Let's meet three main types of germs. Nice to meet you! I'm a fungus. Some of my fungi friends are nice, but others are troublemakers. Hi, I'm a bacterium (bak-TEER-ee-uhm). Just like fungi, most of my bacteria friends are good. but some cause problems! Hello! I'm a virus. Sorry, but viruses and humans don't usually get along.
Making Me Sick Most germs around us are safe, but some can be bad for us. If bad germs get into our bodies, they make us feel sick. Bad germs can make our throats hurt. They can also make us cough or sneeze. Have you ever had a cold? Sorry, that was because of one of us viruses! COUGH! COUGH!
Getting Around Germs can spread in many ways. Let's learn some of them! Air When we cough or sneeze, germs shoot from our bodies and into the air. Wheee! Surfaces Germs can move place to place on our hands, clothes, and even our pets! Water Some germs can travel place to place in water. Touch Germs can move between people when they touch each other.
Cover Up Many germs travel through the air. How can we stop them? Cover your mouth and nose with a tissue before you cough or sneeze. Tissues help catch germs when we cough or sneeze. But what about when we breathe? Wear a mask that covers your nose and mouth. This helps stop germs from getting into the air. A mask
