To find out what happens when a potato chip is left in a sugar solution.

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Osmosis in a potato chip

Aim: To find out what happens when a potato chip is left in a sugar solution.

Possible Variables:

  • Sugar solution
  • Size of the potato
  • Time in the solution
  • Any skin on the potato
  • Temperature of solution
  • Surface are of potato

I have decided to analyze what happens to potato chips in different concentrations of sugar solution.

Safety: While I am preparing for the experiment I must make sure I cut the potato using the cork borer onto a white tile, not into my hand. Also when cutting any skin off my potato using a scalpel, to do it onto the white tile so I don’t cut myself.

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Fair Test: To keep it a fair test all the variables must stay the same, apart from the one I am changing. I must make sure all the chips are the same length, the amount of sugar solution in each of the test tubes are equal and there is no skin on any of the chips.

Apparatus: 

  • A potato
  • A size 3 cork borer
  • A white tile
  • A scalpel
  • A weighing scales
  • 18 bungs for test tubes
  • 20ml 0.0M sugar solution for 3 flat bottomed test tubes
  • 20ml 0.1M sugar solution for 3 flat bottomed test tubes
  • ...

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