Discussion:
In my hypothesis I stated that the egg submerged in 150ml of plain water will gain mass, swell and volume of liquid will lower as a result of the osmosis of water in the egg. My second hypothesis stated that an egg submerged in 150ml of orange juice will gain mass, swell, volume of liquid will lower and egg will develop a yellowish tint as a result of the osmosis of orange juice. Both of these hypotheses were correct. The first hypothesis’s was correct because the egg in beaker 1 gained mass, (10.8g) looked swollen and the volume of liquid was lowered, (20mL). Hypothesis two was correct because the egg gained mass, (8g) looked swollen, had a yellowish tint and the volume of liquid was lowered, (15mL). My background research was the entire unit on osmosis and diffusion. I got this information from Ms. Thompson and The Science 8 Text Book.
In my procedure I dissolved the shell of the egg using vinegar, to expose the membrane. Next, I observed and weighed the egg, for my results. After that, I put one egg in orange juice and the other in water, for the experiment. After 24 hours I observed and weighed the egg again, for my results. This is a shortened version of my procedure. The variable I stated were orange juice and water for the independent variable, effect on egg for dependant variable, and egg, temperature of water, and volume of liquid for control. We made sure these variables were correct because we made sure that both beakers had the same amount of water, the object we were using were both an egg and both beakers were in the same temperature all the time.
The results of this experiment are that the egg in orange juice grew, (8g) the amount of water declined, (15mL) the egg was swollen and the egg gained a yellowish tint. The egg in water grew, (10.8g) was swollen and the amount of water declined (20mL). Both of these experiment’s results were shown in Data Table 1-3 and Data Graph 2-3. I expected these results thanks to the osmosis and diffusion unit in Science.
This experiment was successful, but I would still change a couple things. The things I would change are, I would put one egg in one beaker filled with vinegar and use different, and more exciting substances. No problems were identified, but there still could be possible errors. The errors are that the eggs were different sizes and some of the water or orange juice could have spilled when being moved. If I repeated this project I would use coke and colored water instead.
In my procedure I dissolved the shell of the egg using vinegar, to expose the membrane. Next, I observed and weighed the egg, for my results. After that, I put one egg in orange juice and the other in water, for the experiment. After 24 hours I observed and weighed the egg again, for my results. This is a shortened version of my procedure. The variable I stated were orange juice and water for the independent variable, effect on egg for dependant variable, and egg, temperature of water, and volume of liquid for control. We made sure these variables were correct because we made sure that both beakers had the same amount of water, the object we were using were both an egg and both beakers were in the same temperature all the time.
The results of this experiment are that the egg in orange juice grew, (8g) the amount of water declined, (15mL) the egg was swollen and the egg gained a yellowish tint. The egg in water grew, (10.8g) was swollen and the amount of water declined (20mL). Both of these experiment’s results were shown in Data Table 1-3 and Data Graph 2-3. I expected these results thanks to the osmosis and diffusion unit in Science.
This experiment was successful, but I would still change a couple things. The things I would change are, I would put one egg in one beaker filled with vinegar and use different, and more exciting substances. No problems were identified, but there still could be possible errors. The errors are that the eggs were different sizes and some of the water or orange juice could have spilled when being moved. If I repeated this project I would use coke and colored water instead.