![]() | Project title | How much bacteria do our hands contain?![]() |
Difficulty Level | Elementary school | |
Main link | Click here to view this science project | |
Description | ||
Although we can't always see them, microorganisms are present in almost all environments. Many can be grown in the laboratory on plates containing a solid, nutrient-rich medium (agar plates). After several days, a single bacterial cell grows into a population of bacterial cells that is visible to the naked eye. This population of cells is called a microbial colony. In this exercise we will test for the presence of microorganisms on our hands and on objects we are in contact with. |