1. 6 identical pieces of carrot were cut, weighed and put into placed in solutions of different concentrations of sugar solution. After an hour, they were removed, blotted dry and weighed again.
The change in mass was calculated. The results are shown below.
Distilled water 0.5M
1.OM
1.5M
Mass at start (8)
2.65
2.66
2.67
2.65
Mass at end (g)
2.92
2.85
2.35
1.89
a) What was the independent variable?
b) What was the dependent variable?
c) Suggest two variables that were kept the same
d) Explain why some pieces of carrot lost mass