bacteria in the cafeteria

Microbes live everywhere!

They are in the air, in the soil, in the cafeteria... even on you and in you. In fact, your body is home to trillions of these tiny living things!

Wherever you go, you are picking up new microbes and leaving some of your own behind. There are a lot of different kinds of microbes. Only a few can make you sick. Most kinds are totally harmless to humans. Many are very helpful to us.


Find and click on all 12 stars in the cafeteria to answer the microbe riddle! Along the way, find out more about these tiny creatures that do some big, amazing things.

Why don't microbes get married?

Because they are             -             !


  1. Find and click on a blue star .
  2. Read the fact and figure out if the microbe it describes can help people or hurt them.
  3. Find all 12 stars in the cafeteria to solve the riddle!