Osmosis Essay -- Papers

Osmosis Introduction I obtained my scientific knowledge from the "AQA science: double award modular." This is an experiment that will explore the osmosis theory To make this experiment safe I will wear goggles to protect my eyes and also will make sure that when using the borer to cut the potato I have a white tile underneath. The experiment will be a fair test as I will keep the weight of the cut potato the same throughout the water and sugar solutions. I will try to keep the potatoes surface area and volume the same. I will make sure that both pieces of potato are placed in their solutions at the same time and pulled out together. I will make the weight of the potatoes the same by using the top pan balance and keeping the weight roughly the same through out the different potatoes. I will measure the potatoes to 2 decimal places (g). I will make sure the experiment is fair by completely submerging both potatoes under their solutions so they all have the same chance of releasing and taking in water or sugar solution. When repeating the experiment to get a more accurate result I will make sure I use the same controls. I will be sure to have a different test tube as some of the solution maybe left in the test tube after the last experiment. I predict that when the potato chip (in high concentrated sugar) is placed in the sugar solution it will either lose or gain in weight. As the potato is in a concentration that is higher in water than itself it will gain weight and when a potato is in a concentration that is lower in water than itself will lose weight. This is due to osmosis. Osmosis is the diffusion of water from a... ...also have an assistant to help me remove and place the potatoes in the solutions so that they all had equal amounts of time in their solutions. I can not make my experiment perfect as the are some limitations to my equipment. To obtain more evidence with osmosis I could improve certain addition aspects like the amount of solution in the test tubes, so that you could get results on whether the amount of solution affects the amount of osmosing a potato chip can do. Some potatoes could have more sugar in than others, so to extend my investigation I could produce results on which potatoes have more protein in. I could add additional information about the time it takes for osmosis. I could retrieve information on the time it takes for the potato chips to reach its limiting point that is if there is a limiting point.