THE DIRTIEST PLACE IN THE SCHOOL

  THE DIRTIEST PLACE IN THE SCHOOL...

Aim:
To find the the dirtiest place in Hornby High School.


HYPOTHESIS:
I think the dirtiest place in the school is underneath J block because bacteria likes dark and cold places so it will grow more.


LOCATIONS:
-Rubbish bin   -Toilet seat   -Gym floor   -Under J block   -Under tables   -Food room bench   -Chromebook keyboard   -Door handles   -Table top   -Glass window   -Our hands   -Bathroom tap  
 -Drinking fountains.   



Method:
-Take cotton bud and firmly wipe it over the surface.
-Wipe cotton bud across the agar jelly carefully.
-Seal the agar plate with cello tape and and write the location.
-Store upside down in a dark location.

CONCLUSIONS:

-The cleanest place was: Mr stocks door handle 

Because:It had no bacteria or germs on it. 

-The dirtiest place in school was: Is the J block rubbish bin.

Because: It has disgusting bacteria on it and a lot of fungus as well.

-I was surprised by: The different coloured bacteria's on it. 

-The rubbish bin grew the most fungus.

-The gym floor grew the most bacteria.