Have students give out examples. Again, ask for examples from students. Germs are what makes us sick. Germs are very small organisms that we cannot see with the naked eye. In order to see them we need a very powerful microscope.
Germs are everywhere.
They can cause sickness in people at any age. Germs are everywhere, they can be found in the air, on our desks, and in our bodies. Our body has special defenses to prevent us from getting sick. Skin- provides a natural barrier to prevent germs from entering into our body. The only time our skin doesn't protect us from us from germs is when we have cuts.