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!
I'm glad you did this cause I'm actually doing an experiment similar to this. This really helped me understand how to use and put the bacteria nutrients on the petri dish.
try colloidal silver as a disinfectant.
1beinki 1 week ago
that so great !!!!
nony200999 2 weeks ago
thanks helped a lot
UnicornKrossing 3 weeks ago
nice explanation
ankitpurohit70 4 weeks ago
we are doing this experiment in class I cant wait
flishkchiye 1 month ago
! That mean the keyboard is more contaminated than the bathroom
mesholmesho 2 months ago
cool one of my family members a long time ago they made up the petri dish and my last name is Petri
rickpetri 2 months ago
O.o ok.... Kinda creeped me out..
rainbow19913 2 months ago
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!
WBHify 2 months ago
this was a very helpful video :-)
spikespine3 3 months ago
he does his inoculations wrong...
ehandkz 3 months ago
@ehandkz I know that's what I noticed as well
rushhour2397 2 months ago
Let's grow mushrooms on our shoes.
Fynniann 4 months ago 2
So you heard him, evryboddy go to the shop to buy a big bubble and go live in it :D
01Slayer10 7 months ago
No mention of aseptic techniques.
celticslimjim 10 months ago
@celticslimjim Agreed - he should have divided it in quadrants. He scribbled his cultures instead of using the quadrant technique. Fail.
cromben 9 months ago
so coooool
SuperKaroura 10 months ago
YOU RULE AT CHEMISTRY!!!
TheJuli1241 10 months ago 2
did this with water fountains at school, it was so bad i got sick...
samwise401 11 months ago
@samwise401 Why? That's just the average bacteria that's everywhere, just growing in a visible colony. Nothing's changed except the quantity.
GuerillaManifesto 9 months ago
lol my friends and i are doing the door to the cafeteria at our school, should be interestinggg :S
11dayandnight 1 year ago
there are germs everywhere ahahahahahahaha
SoJustCool 1 year ago
how can you boil the nutrient agar? . . . . and where would you get it?
purpledragon112 1 year ago
Comment removed
purpledragon112 1 year ago
I'm glad you did this cause I'm actually doing an experiment similar to this. This really helped me understand how to use and put the bacteria nutrients on the petri dish.
akiriaflower 1 year ago
@akiriaflower do you know how to boil the agar?
purpledragon112 1 year ago
Sooooo are some of the micros dangerous....?
AssaultCrusader 1 year ago
GOGO IMMUNE SYSTEM, it's like the Crusades being fought every second
Grundalizer 1 year ago
@Grundalizer I hope is not like the Crusades, they lost you know.
cmcespedes2 1 year ago
GR8888 VIDEO
NANODOCTOR 1 year ago
what kind of substrate it is...???
Bulloromano 1 year ago
awsowme
metallica234ify 1 year ago
now we should wash our hands after sitting on computer not after bathroom
doingyourass 1 year ago 2
im doing this for the science fair :D
BLackOutX24 1 year ago
awesome !!! i enjoyed it !
navhindustani 1 year ago
that what im doing too dude
aaronpitagn 2 years ago
myfriend didthis and the basketballs in the gym.......3 types of staff infection X(
froggermanCA 2 years ago
waw holy mackrel. 2:43
XD
TheGameRain 2 years ago
What about the top of the sanitizer bottle. how dirty is that?
toadstoolnews 2 years ago 47
haha right
Nazizombies97 2 years ago
I wonder how dirty the inside of a hand sanitizer bottle is.
bannedsk8r 2 years ago
@bannedsk8r even better, the push dispenser or lid
thedragonsprince 1 year ago
@toadstoolnews
I literally just finished my culture of a swab from a sanitizer bottle. Surprisingly clean :/
cdl81596 9 months ago
I bet doorknobs are the dirtiest.
njb444 2 years ago
gggg
foxsmith2009 2 years ago
LoL i did this at home. Disgusting! ~cool.^^
lollipopcorndog 2 years ago
i think this is great =0)
babykat89108 2 years ago 21