Materials Required Water Soap How to do it The science of surface tension of water can be taught during the bathing time of the child Apply soap and water in the child's hand. Ask the child to close the hand tightly, and then gently open the hand with the thumb and index finger joined. You can see a thin soap film formed between the closed thumb and the index finger. Inference Due to the surface tension property of theliquid, the formation of thin layer of soap solution is seen.
Inference