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Essay / Research Paper Abstract
A 4 page research paper that outlines how to conduct an experiment to test the bacteria-killing action of name-brand mouthwashes. Two such experiments are profiled. Bibliography lists 3 sources.
Page Count:
4 pages (~225 words per page)
File: D0_khmthwsh.rtf
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Unformatted sample text from the term paper:
such as Scope, Listerine and Cepacol 6-10 petri dishes and growth medium (Agar or alternative medium) cotton swabs tape (in order to seal the petri dishes) marker (to mark each
dish as to its contents) ruler (in millimeters) latex gloves 30 sterile discs materials to make an incubator: large plastic storage container with lib and low-watt (25W) lamp (Whats growing
in that dish, 2003). Bleach and two plastic garbage bags for proper disposal If petri dishes are unavailable, clear food-grade plastic containers with lids can be used. If agar
is unavailable as a growth medium, unflavored gelatin can be substituted. However, sources warn that the results of the experiment will then be more limited (Whats growing in that dish,
2003). If gelatin is used as a growth medium, it is recommended that the incubator should not be used, but rather that more time should be allowed for cultures to
grow after they have been placed in a warm location (Whats growing in that dish, 2003). Two sources on the Internet report on how an experiment to determine
which mouthwash kills the most bacteria was accomplished. Experiment 1 This experiment used ten petri dishes that contained tryptic soy agar as a growth medium. Streptococcus salivarius bacteria
was obtained by swabbing the inside of the experimenters cheek with a cotton swab. Ten sterile discs, each, were soaked in two brands of mouthwash, Scope and Listerine. When the
student researching this topic replicates this experiment, he/she can, of course, extend the experiment to include Cepacol. Additionally, as a control, ten discs were soaked in sterile water. If the
control dish should prove to kill bacteria as effectively as the mouthwash, it will show that mouthwash, in itself, is an ineffective product for killing bacteria. Once they had dried,
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