Cooking Up Science with Miss America: "Insane in the Membrane"
Episode 7: If you put eggs and sand through a colander, would they both fall through? Probably not. Only the sand would actually pass through the holes of the colander because the eggs are too large. The colander acts as a semipermeable membrane, allowing some materials through but not others. Lets explore some other semipermeable membranes -like what surrounds our cells to help keep our bodies working and healthy. And eggs are like giant cells. They are a perfect thing to use to explore the science of semipermeable membranes, osmosis, and diffusion. We'll even experience a cool chemical reaction when we place an egg in vinegar. What do you think will happen when this chemical reaction is complete? Developed for grades 6-8 and correlated with Virginia Standards of Learning.
Produced by Camille Schrier, Miss America 2020, in partnership with VPM.
For more information:
- Naked Egg Experiments with the Exploratorium
- Eggshell and Vinegar Science Experiments with Science Works Museum
- Egg Osmosis Experiment with Mr. Pauller, STEM educator at North County High School in Glen Burnie, Maryland.
Virginia Standards of Learning:
LS2 The student will investigate and understand that all living things are composed of one or more cells that support life processes. Key ideas include:
e) cellular transport (osmosis and diffusion) is important for life processes.