Rocket peers at a doorknob through a magnifying glass. "I am hunting germs," he says. "I see nothing!"
Raven leans in. "What do you notice? Are germs bigger or smaller than a speck of dust?"
Nova shines a soft beam on the knob. "Some things are too small for a magnifying glass," she says.
"Then I need a bigger lens!" Rocket says, already sketching.
Germs are living things that are very, very tiny.
You need a microscope to see them. That makes them microscopic.
Two kinds of germs are bacteria and viruses.
Viruses are even smaller than bacteria.
Some germs can make people sick. But not all germs are bad!
Helpful bacteria live in your intestines. They help your body use the food you eat.
| Statement | True or false? |
|---|---|
| Germs are living things. | ? |
| You can see germs easily without a microscope. | ? |
| Germs can travel in a sneeze. | ? |
| Some bacteria help your body. | ? |
Your body has a team that keeps most germs out. We will meet one defender each day.
Your skin is the first one. Skin acts like a wall that blocks germs from getting in.
This week you will also meet tears, mucus and white blood cells.
Nice germ hunting! Tomorrow we meet two defenders on your face: mucus and tears.