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Thursday, 25 August 2016

The Dirtiest place in the school?

Aim: To find the dirtiest place at HHS


Hypothesis: I think the Gym floor is the dirtiest place because lots of people go there to play around and they get all sweaty and then it drips every where.

Equipment: Cotton buds,Agar dishes, cellotape

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


The cleanest place was Mr stocks door handle because there was nothing on there.

The dirtiest place is the Gym floor because there was a whole agar was full of yellow.

I was surprised that Mr stocks door handle because he does experience.

The Rc laptop grew the most fungus 


The gym floor has the most bacteria 









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