Biology Experiment --Osmosis

Sarah a raw egg then  placed it in a cup with vinegar, letting it sit for 24 hours. When she took it out the shell had dissolved, which left the membrane under the shell exposed. That membrane is a semipermeable membrane, whick had allowed the egg to soak up the vinegar. She then rinsed the egg off and placed it in a cup filled with Karo syrup for 24 hours. Whe we exaamined the egg after 24 hours it was smaller and dimpled, since the vinegar moved out of the egg and into the syrup. We then placed the egg in a cup of distilled water for 24 hours, which allowed the water to move back into the egg again. 

Seems like a lot of work to try and understand a concept, but it works well for us. Sarah is a hands on learner and this works great for us. I love homeschooling and the fact that I get to travel this journey with her.