Growing Bacteria - Petri Dish

[ShopperPlug]

Wow, "biology it stinks, chemistry it explodes and physics it doesn't work" couldn't have said it any better.

[davidhart]

Impressive display of two guys who know absolutely nothing about the topic they're discussing. lol

[xghoulxx]

You could have made a 4 quadrant streak to isolate specific colonies, then do various simple stain techniques (gram stain) to view it under a microscope for easy determination of what you have on each plate. I remember in microbiology we tried the sanitizer and still found some bacteria because when you use the sanitizer there is ALWAYS natural bacteria coming out of our skin which every human is born with. I can imagine how crazy someone can get after realizing how much bacteria is everywhere.

[DavidMorales-hgxp]

Thanks Steve I've finally found a video for my science fair project.

[stewthecat]

its just not the same without a white lab coat...

[rickpetri]

cool one of my family members a long time ago they made up the petri dish and my last name is Petri

[mattymacg]

Not at all. All it means is that there is a greater variety of species on the keyboard than in the bathroom. Remember, the nutrient agar is creating an optimal environment for this bacteria to grow. It isn't an accurate representation of how much bacteria is in each of these places, just what kinds.

[doingyourass]

now we should wash our hands after sitting on computer not after bathroom

[Fynniann]

Let's grow mushrooms on our shoes.

[Crazylaze]

Make sure the petri dishes are in a warm area.

[jacobanaya]

im doing this project for this science fair my school is hosting and this video is awesome :)

[dayandnight]

lol my friends and i are doing the door to the cafeteria at our school, should be interestinggg :S

[flishkchiye]

we are doing this experiment in class I cant wait

[WBHify]

In order for this to have any validity, it needs to be a sterile petri dish and he shouldn't be breathing all over the agar---there are many things wrong with this demonstration! Use this video only if you want students to point out what he did incorrectly--only then is it useful!

[samwise]

did this with water fountains at school, it was so bad i got sick...

[MultiAxian]

Yeah you could streak the bacteria to isolate individual colonies, but you'd still need a battery of biochemical tests to conclusively identify each one. a gram stain alone just wouldn't cut it.

[MegaTheWire]

In my science we did this to my mouth and I am worried what's coming :( 

Hopefully no harmful bacteria :D

[bannedskr]

I wonder how dirty the inside of a hand sanitizer bottle is.

[shiney]

Note: The majority of microbes do not harm you :) Just relax..

[cesarrodriguez]

I dont want to touch my keyboard anymore.