Discussion
1. In my hypothesis I predicted that the egg in the water would swell in size and the egg in corn syrup would stay the same, also that they would both turn red. My hypothesis was correct in a degree that one swelled, but incorrect that one would stay neutral. I realized that Egg (2) had a higher concentration of water compared to the beaker of corn syrup.
2. Primarily, I placed two eggs in vinegar, together to dissolve the hard, outer shell. This would let us witness Osmosis when I put the two eggs into two different substances. I did this to prove that Osmosis does occur through a selectively permeable membrane. The Independent variable was the substances the eggs were in. This is because the eggs were both in vinegar, then were placed into their selected substances. The Dependent variable was the effect on the egg whilst in the substances. This is obvious because the outcome could change if you change what substances they’re in. The Controlled variables were: how long the egg is in the solution, the substance the egg is in, how long it’s refrigerated and the temperature. These are all areas where you cannot change anything because if you do the experiment won’t give you the result you want.
3. In the ‘Observations’ page there were several data charts. What they proved was that Egg (1), whose original mass was 62.1g, swelled because there was a higher concentration of water in the beaker than the inside the egg. So, in search of equilibrium water moved from outside the egg to inside it, adding 7.2g. I expected this in my hypothesis prediction. However, Egg (2), whose original mass was 60.3g, shrunk because there was higher concentration of water inside the egg than the beaker of corn syrup. This meant that water would escape the egg and add to the volume of the beaker, thus decreasing the mass by 16.2g. I didn't predict this, as I thought they were already in equilibrium, judging by the numbers of mass and volume of the egg and beaker.
4. The experiment was very successful, as I understood what was going on throughout the entire time. In my opinion, I detected no problems with the experiment my group conducted. If I repeated the project I would replace the eggs with (for example), pigs bladder, as it too has a semi permeable membrane and it is a more complex figure than eggs.
2. Primarily, I placed two eggs in vinegar, together to dissolve the hard, outer shell. This would let us witness Osmosis when I put the two eggs into two different substances. I did this to prove that Osmosis does occur through a selectively permeable membrane. The Independent variable was the substances the eggs were in. This is because the eggs were both in vinegar, then were placed into their selected substances. The Dependent variable was the effect on the egg whilst in the substances. This is obvious because the outcome could change if you change what substances they’re in. The Controlled variables were: how long the egg is in the solution, the substance the egg is in, how long it’s refrigerated and the temperature. These are all areas where you cannot change anything because if you do the experiment won’t give you the result you want.
3. In the ‘Observations’ page there were several data charts. What they proved was that Egg (1), whose original mass was 62.1g, swelled because there was a higher concentration of water in the beaker than the inside the egg. So, in search of equilibrium water moved from outside the egg to inside it, adding 7.2g. I expected this in my hypothesis prediction. However, Egg (2), whose original mass was 60.3g, shrunk because there was higher concentration of water inside the egg than the beaker of corn syrup. This meant that water would escape the egg and add to the volume of the beaker, thus decreasing the mass by 16.2g. I didn't predict this, as I thought they were already in equilibrium, judging by the numbers of mass and volume of the egg and beaker.
4. The experiment was very successful, as I understood what was going on throughout the entire time. In my opinion, I detected no problems with the experiment my group conducted. If I repeated the project I would replace the eggs with (for example), pigs bladder, as it too has a semi permeable membrane and it is a more complex figure than eggs.