September 22

Concave slides
Purpose: To look at a drop of both our samples under the microscope.

Procedure:

Add a drop of Vaseline to the four corners of a cover slip.

Using a sterile inoculating loop, take a sample of contaminated broth and place a drop of the broth in the center of the covers slip. 

With the concave slide - making sure you are indeed using the concave side- place the concave side on top of the cover slip making sure the drop of broth is in the center of the concave section of the slide. The Vaseline sticks to the slide so that the drop of broth stays intact.



Concave slide: environmental sample Rod shaped bacteria

video of the environmental sample....LOOK AT THEM GO!

Concave slide: Unknown sample (Circular Shaped)