oliviae -- Blogmeister

My Science Blog!

We have three 6th grade Science classes and two 8th grade Science classes blogging here from the Pacific Northwest in Chimacum, WA! Sixth graders are learning a bit about Mt Saint Helens, environmental science through fresh water ecology, and physical science this year. Eighth graders are learning about life science this year. Please join us as we learn Science by exploring our world.
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by oliviae

teacher: Alfonso Gonzalez

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Our School is Full of Bacteria! During the past few days, my group has been doing an experiment about bacteria in our school! We went around and swabbed four random spots in our school (my team did the toilet seat, the water fountain, the iPad screen, and the lunch room door handle) with wet Q-tips. We then rubbed the Q-tips in their correct quadrant of the petri dish, then incubated them- to grow the bacteria- then made observations at 24 hours and 48 hours. The results were astounding.
The question I had going into this experiment was 'What part of our school has the most bacteria?'. After growing the bacteria for 48 hours, the answer was the water fountain! That section of the dish was covered in bacteria. It was soo gross! I'm definitely never using that fountain again! An inaccuracy that could have happened was while we transported the Q-tip, we could've had bacteria from the air float on to it and contaminate the sample. The close second was the toilet seat, the third with the lunchroom door handle, and the place with the least bacteria was the iPad! Some questions I had after this experiment was why the iPad was less dirty than the door handle because the iPad is never cleaned and the handle is supposed to be cleaned everyday!

Article posted February 6, 2012 at 11:56 AM • comment (1) • Reads 827 • Return to Blog List

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Good job! We did not get that much bacteria only in the lunchroom I can't believe the water fountains have that much bacteria haha sounds like you guys had fun.
Comment Posted on February 8, 2012 at 12:02 PM by hannahc

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