The predicted results / graph shows that dettol hand wash will be the most effective and have a marginally better zone of inhibition than dettol hand sanitiser, while the control hat contains nothing, will be the least effective. Experimental Procedures
Independent Variable
An independent variable is a variable that remains unchanged and stands alone. My independant variable is each hand cleaning product used. Organic Care orange and ginger antibacterial hand wash, Palmolive antibacterial liquid soap, Dettol hand wash - foam and Dettol hand sanitiser.
Dependent Variable
A Dependent variable is a variable that is being measured in the experiment. My depenedent variable is the rate of bacteria deterioration (zone of inhibition).
Constant …show more content…
The same process was repeated for the next three hand cleaners and sanitiser, into three separate agar plates. The tweezers were washed and sterilised in between each agar plate
The labelled plates were placed in a designated area, upside down, over the period of three
Independent Variable
An independent variable is a variable that remains unchanged and stands alone. My independant variable is each hand cleaning product used. Organic Care orange and ginger antibacterial hand wash, Palmolive antibacterial liquid soap, Dettol hand wash - foam and Dettol hand sanitiser.
Dependent Variable
A Dependent variable is a variable that is being measured in the experiment. My depenedent variable is the rate of bacteria deterioration (zone of inhibition).
Constant …show more content…
The same process was repeated for the next three hand cleaners and sanitiser, into three separate agar plates. The tweezers were washed and sterilised in between each agar plate
The labelled plates were placed in a designated area, upside down, over the period of three