The water will then travel through a partly permeable membrane into the potato from outside. When the sugar solution is 20% the mass of the potato will decrease as there is more sugar in the water then in the potato.
Apparatus:
? 5 Boiling tubes
? Cork borer
? Electric balance
? Water
? Sugar
? Scalpel
Safety:
? Make sure you are careful with the scalpel and wear goggles
? Make sure all pieces of potato are removed from the floor
Method:
? Make sure you have all your apparatus set up and are aware of all safety aspects
? Using your cork borer, cut a few cylinders out of the potato
? Then get the scalpel and cut the cylinders into smaller discs
? Weigh the discs of potato and make sure they are all the same mass
? Then put three cylinders in each of the boiling tubes
? Add the five solutions, one to each boiling tube
? Leave the discs over night in their solutions
? Next day, weigh the discs again and record the results in a results table
Fair test:
I can make this investigation a fair test by only changing the concentration of the solutions... displayed 300 characters
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When the sugar solution is 20% the mass of the potato will decrease as there is more sugar in the water then in the potato.
Apparatus:
? 5 Boiling tubes
? Cork borer
? Electric balance
? Water
? Sugar
? Scalpel
Safety:
? Make sure you are careful with the scalpel and wear goggles
? Make sure all pieces of potato are removed from the floor
Method:
? Make sure you have all your apparatus set up and are aware of all safety aspects
? Using your cork borer, cut a few cylinders out of the potato
? Then get the scalpel and cut the cylinders into smaller discs
? Weigh the discs of potato and make sure they are all the same mass
? Then put three cylinders in each of the boiling tubes
? Add the five solutions, one to each boiling tube
? Leave the discs over night in their solutions
? Next day, weigh the discs again and record the results in a results table
Fair test:
I can make this investigation a fair test by only changing the concentration of the solutions... displayed 300 characters
