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Germs & preventing illness

Grade 3 · Health & Wellness · Free lesson

Hi there! I am Studyfin, your learning buddy. Today we will explore how to stay healthy and stop tiny germs from spreading!

Germs are tiny living things. They are so small you cannot see them. Some germs can make us sick when they get inside our bodies.

Germs travel in different ways. They can jump from a sneeze into the air. They also spread when we touch dirty surfaces and then touch our eyes or mouth.

Sneeze Body

We can stop germs easily! Washing your hands with soap and water is the best way. Scrubbing for twenty seconds washes the germs down the drain.

Wash with Soap!

Immunization is also very important. Shots or vaccines teach your body how to fight off bad germs. They act like a shield to keep you safe before you even get sick.

Vaccine Shield
✏️ Worked example

Let us think about how germs spread and how to stop them. Imagine your friend sneezes into their bare hand. Then, they touch a classroom doorknob. How do germs spread here, and how can we stop them?

  1. First, find how the germs spread. The sneeze puts germs directly onto your friend's hand.
  2. Next, trace the path. When your friend touches the doorknob, the germs stay on the metal.
  3. Then, think about the next person. If you touch that same doorknob, the germs get onto your hand.
  4. Now, find a way to prevent this. Your friend can sneeze into their elbow instead of their hand.
  5. Finally, use hand sanitizer or wash your hands with soap. This kills the germs on the doorknob and your hands.
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