My Investigation on osmosis
Osmosis is a special kind of diffusion. While diffusion can describe the movement of any kind of molecule, osmosis is only about the movement of water molecules.
To show this diffusion I will be using potato discs, of the same size and mass, in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration.
I predict that when the sugar solution is 0% the mass will increase as there is less sugar in the water than in the potato. 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......
Join Now or Login to view the rest of this paper.
Approximate Word Count: 633
Approximate Pages: 3 (260 words per double-spaced page) |