In our reading today, we learned that a plant cell’s membrane is semi-permeable. So, we did a quick science experiment to demonstrate the definition of semi-permeable.
My oldest son held a paper towel between two hands while I ran the faucet in our kitchen sink and another son looked to see if the water would pass through the paper towel – it did!
Next we tried chocolate sprinkles to see if they would pass through the paper towel. The boys made hypotheses first and then I poured some on to the paper towel. They did not pass through!
So, just like a cell membrane, the paper towel is designed to allow some substances to pass through, while preventing others. Quick, easy & effective!
How about y’all? Do anything fun for plant cell reinforcement at home? Did anybody make one of the fun edible models?
Great way to explain this! 🙂
thanks! glad you liked it 🙂
I love this experiment! I will try it tomorrow! Thanks for sharing : )
great!