Experimenting with Egg Osmosis

Experimenting with Egg Osmosis photo

Seventh-grade student-scientists in Jessica D’Angelo’s class at Great Hollow Middle School are learning about diffusion and osmosis by experimenting on eggs.

During the course of three days, the students performed procedures to see how water molecules diffuse across an egg’s membrane in different solutions. The students started by placing an egg in a beaker and covering it in vinegar for 24 hours. After recording how the shell of the egg dissolved, the students put the eggs in either a mixture of Karo syrup and water or colored water for another 24 hours. Lastly, the students swapped their eggs with another lab group for the final 24 hours. The students observed and recorded their findings about the process of osmosis.