The tell-tale bacteria
How can you tell is have bacteria in your body? If you wash your hands 500 times it doesn't matter because microbes (small organisms) are still in there (in your body). But not all of them injure you. Some of them are beneficial for you. Bacteria help a lot in police investigation. They can help catch robbers. It can help identify a person. Every person has different microbes and different fingerprints.
In my opinion this wasn't so interesting, but I liked the way how they related the article to the method of how police find people with fingerprints. I didn't like that the article was talking about bacteria because I don't like bacteria, but it was a very useful article.
Author: Unknown
Source: http://www.sciencenewsforkids.org/articles/20100407/Note2.asp
Author: Unknown
Source: http://www.sciencenewsforkids.org/articles/20100407/Note2.asp
Date: April 7, 2010
Due date: October 27, 2010