Kids Search. The Best Search Engine for K-12 Kids and Children.     

   web | images | video | facts | wiki | news | games | kidztube | apps

report a search problem

contact us education daily journal home facebook
about us make us your default search kidztalk twitter  
terms/privacy blocking websites kidznet pinterest  
advertise teacher zone wiki    
media link to us learning sites    
business / api solutions add a site image search    
affiliate program kidzsearch apps kidztube    
play youtube on kidzsearch games    
  voice search music    
  report a problem cool facts    
  settings news    
    search help    
    kidznet directory    

 mobile version

      Copyright 2005-2021 

The Germ theory of disease is a theory in biology. It says that small organisms (called germs), also known as microbes, cause some diseases. These diseases are called infectious diseases. The germ theory states that small organisms cause a reaction in the body of those who are infected. The body's reaction to infection is called a disease.

Scanning electron microscope image of the bacteria that causes the disease cholera.
 view more...