yas

Obtaining evidence

During the investigation I did the experiment three times with each set of pieces, my results are shown below :-


Pieces of chips cut from 5cm No. of oxygen produced in 3 mins (cm3) Average (cm3)
1 2 3
Whole 4.9 3.6 2.6 3.7
Half 5 5.5 5.4 5.3
Quarter 11.2 4.7 5.1 7
Eighth 11.5 11.7 10.6 11.3
Sixteenth 9.7 16.3 16.4 14.1


My results show me that the bigger the surface area then the more oxygen produced. The result which I have highlighted is different to the other two results in the column because that experiment was done on a completely differen...