Introduction
In science class, we have conducted an experiment which involved putting an egg without a shell in three different substances. We put the first egg in water, the second egg in corn syrup and the third egg we wrapped in saran wrap and placed in an empty cup. We used an egg in place of a cell because they both have similar qualities, such as the cytoplasm being the inside of the egg and the nucleus being the yolk. Diffusion is the movement of cells from an area of higher concentration to an area of lower concentration. Osmosis is the movement of water molecules across a semi-permeable membrane. Diffusion and osmosis are important because they help with cellular respiration, which is how we stay alive. We conducted this experiment …show more content…
Here are my hypotheses:
• If we put the egg in water, then the egg will become larger because osmosis will occur and the water molecules will shift into the egg.
• If we put the egg in corn syrup, then the egg will shrivel up because there is more water inside the egg than outside of it so osmosis will occur.
• If we put the egg in plastic wrap, then nothing will happen because no water can get inside the plastic wrap guarding the egg to make osmosis occur.
Our independent variable for this project was the solution we put the eggs in, because we can control the solution and the solution affects the egg. Our dependent variable was the egg, because it was affected by the independent variable and it can be measured. Our control group was the egg wrapped in saran wrap, because there was nothing there that could change the egg. Our constants were that there was an egg and a beaker in each experiment. Methods
Refer to the lab handout for materials and …show more content…
Therefore, the egg in corn syrup was affected the most by osmosis, and the egg in saran wrap was affected the least. The water and saran wrap eggs grew, and the corn syrup egg shrunk.

Discussion Out of the three eggs, the water egg increased in size the most when it grew by 5.6 grams. In my hypotheses, I hypothesized that the water egg would grow because of the water diffusing into the egg, and I was correct. The corn syrup egg decreased in size drastically, by 42.2 grams to be exact. In my hypotheses I stated that the corn syrup egg would shrink because the water would diffuse out of the egg and into the corn syrup, and I was correct. By the end of the experiment, the corn syrup egg was the smallest out of the three. At the beginning of the experiment, I hypothesized that nothing would happen to the saran wrap egg. I was not exactly correct, as the egg lost 1.4 pounds, but I got the idea that the egg would not change much.
There were no significant errors made that made me question my results. In conclusion, osmosis can affect our cells greatly, and different substances can change our