Identification of Motility Characteristics of bacteria

The document describes the hanging drop method for determining bacterial motility. It involves: 1) Placing a drop of liquid bacterial culture in the center of a cover glass surrounded by Vaseline on the corners. 2) Attaching a depression slide above the cover glass so the drop is suspended inside. 3) Inverting the slide so gravity causes the drop to hang from the cover glass. 4) Examining the suspended drop under a microscope at low power and low light to see if bacteria move within the drop, indicating they are motile.