... water molecules will transfer over to the stronger solution. Thus materializing osmosis. Fair test: To create a fair test certain aspects of the experiment were kept the same whilst one key variable was changed. It was chosen to vary the concentration of the sucrose solution. For the purpose of the experiment, all experiments were carried out at the same time so the temperature was kept almost the same throughout. The mass of the potato was a dependent variable. This means that it was measured throughout the experiment. The mass was measured in grams. The potato chip was measured before it was put in the solution, and after it was taken out. This allowed it to be seen whether osmosis had taken place, and to what extent. It was essential that the volume of the solution that the potato chips were kept in must be the same. The potato chip was made ...

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