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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 pearlb

teacher: Alfonso Gonzalez

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Bacteria in our school My team and I did an experiment with bacteria in our school we tested computer keyboards, door handles, a lunchroom table,and a bathroom seat. One of my questions was, what has the most bacteria?,I predicted that the door handle would have more bacteria, we swabbed it and over time it grew more than anything else so it was the door handle! We had a medium amount of bacteria between the others, amazingly the lunchroom table had more bacteria than the bathroom seat. From what I have seen it seems as if, the more that different organisms touch something the more bacteria grows on it.

Article posted February 8, 2012 at 12:38 PM • comment (1) • Reads 942 • Return to Blog List

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hey i think that you had a good prediction on which place would have the most most bacteria because everybody uses the door handle!its funny how the bathroom seat didnt have the most bacteria because everybody uses it to go to the bathroom and our bods waste has a lot of bacteria in it! i also think that you picked good places to swab for bacteria. my group didnt swab any of the places you did but its cool to see what rresults you got. you had a great blog!!
Comment Posted on April 30, 2012 at 12:42 PM by jamesp

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