House of Little Scientists - How Germs Spread

We know that we spread germs when we cough and sneeze. It causes germs to disperse into the air. But how far do the germs actually spread when we cough and sneeze? This episode of "House of Little Scientists" puts this question to the test. It also tries to find out if masks can really prevent the spread of germs and shows a six-step method of washing our hands properly.