Affect of Egg Circumference

Due to Osmosis of Different Liquids


Do different type of liquids affect the egg circumference due to osmosis?


Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.Passive transport is a movement of biochemicals and other atomic or molecular substances across membranes. Unlike active transport, it does not require an input of chemical energy, being driven by the growth of entropy of the system. Active transparent is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.


If the egg is soaked in vinegar then it will affect the egg circumference more than the other liquids.


  • Eggs

  • Cup

  • Vinegar

  • Water

  • Food Coloring

  • Saltwater

  • Your choice of liquid


  1. First put two eggs (just in case one brakes) in a cup.

  2. Next fill the cup with vinegar for at least two days.

  3. Then rinse the egg with cold water and put it in water for at least day.

  4. Then rinse the egg with cold water again and put the egg in water with food coloring for at least a day.

  5. Then rinse the egg with cold water and this time put the egg in saltwater.

  6. Last you put it in your choice of liquid.

(Through out the process measure and observe the egg every day.)


Nothing (Beginning)-Looks white.

Vinegar-Looks clear and smells bad.

Water-Looks clear and feels squishy.

Food Coloring (green)- Looks dark green and feels squishy.

Salt Water- Looks light green and feels squishy.

Milk-Looks lighter green and feels squishy.



At the end of the experiment, the conclusion was that the egg circumference with vinegar was bigger that the other liquids. My hypothesis was right. Something that I could have done to make this experiment more accurate is use more liquids.