Warning: Use of undefined constant referer - assumed 'referer' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 102

Warning: Use of undefined constant host - assumed 'host' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 105

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 106

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 109
Bacteria on Cell Phones? - College Essays

Bacteria on Cell Phones?

Problem:

Is there is bacteria growing on cell phones, and if there is, how much?

Background Research:

Bacteria are classified into two kingdoms, Eubacteria and Archaebacteria. They are found everywhere, especially Eubacteria. Bacteria are microscopic prokaryotes. They are heterotrophs, meaning the need to consume food to survive. They reproduce by binary fission, and in good conditions (warm, dark, low moisture, with a food source), they can reproduce every twenty minutes.

Hypothesis:

If we swab our cell phones, then we will find bacteria if we put it in an incubator for a few days.

Independent variable:

Swabbing 3 different cell phones for bacteria. (David’s phone, ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

a sterile petri plate with nutrient rich agar and 3 sterile cotton swabs.

2. Using a sharpie and a ruler, divide the bottom of the plate into four equal quadrants. Then, number the quadrants on the side of the petri plate.

3. Tape the petri plate shut to prevent other bacteria from entering to keep the experiment controlled.

4. Open the petri plate, and then use a sterile cotton swab to swab a cell phone and then swab quadrant #1 of the petri plate.

5. Repeat with 2 other cell phones in quadrants #2 and #3.

6. Retape the petri plate shut to prevent the spread of the bacteria.

7. Place in incubator at 37o C for 4 days.

8. Take the petri plate out of the incubator after 4 days, observe, and record data.

Conclusion:

In our experiment, we tested cell phones to see whether or not there were bacteria growing on the surface of them. Our hypothesis was that we thought there would be bacteria on them. Our results supported our hypothesis, because after we took the ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.

Already a member? Login

CITE THIS PAGE:

APA
MLA
Chicago
Turabian

Bacteria on Cell Phones?. (2011, March 15). Retrieved January 7, 2026, from http://www.essayworld.com/essays/Bacteria-on-Cell-Phones/96089

"Bacteria on Cell Phones?." Essayworld.com. Essayworld.com, 15 Mar. 2011. Web. 7 Jan. 2026. <http://www.essayworld.com/essays/Bacteria-on-Cell-Phones/96089>

"Bacteria on Cell Phones?." Essayworld.com. March 15, 2011. Accessed January 7, 2026. http://www.essayworld.com/essays/Bacteria-on-Cell-Phones/96089.

JOIN NOW

Join today and get instant access to this and 50,000+ other essays

PAPER DETAILS

Added: 3/15/2011 10:51:10 AM
Submitted By: dliu088
Category: Science & Nature
Type: Premium Paper
Words: 559
Pages: 3

Save |

Report

SHARE THIS PAPER

SAVED ESSAYS

Save and find your favorite essays easier