One of my favorite lessons to teach is on cohesion and surface tension. The kids are naturally curious and very excited about it, so that makes my job pretty easy! Here are a few fun activities we did today in class.
Shake’n Up Surface Tension
Pour a small amount of water in a small dish. Sprinkle pepper on the surface. Add one drop of soapy water to the center of the dish. When the soapy water breaks the cohesive surface tension, the pepper rapidly scatters to the sides of the dish. So simple…yet still cool! (Sorry for the low quality images on this one, I sent them on my phone.) Freebie!If you are looking to do some of these with your class, download this free activity packet from my TpT store. It gives you a little more information about some different ways to teach surface tension! Happy Teaching… |