The smallest parts of any living thing.

A living thing that is too small to see but can make you sick.

Very small things that live in air, water, earth, plants and animals.

An illness of the body in humans, animals or plants.

People often get _________ in the winter.

It’s possible for a person with influenza to _________.

People often catch the _________ many times in their lives.

Many people are _________ to German measles.

Too much _________ can make breathing through your nose difficult.

Living cell infected with a virus

Where are bacteria located?

What do you need to be able to see bacteria?

Are there more helpful or harmful bacteria in the world?

How long should you wash your hands for?

Choose one way that bacteria can be helpful.

Can you cure a virus with any medication?

What does a virus have to be inside in order to survive?