Therefore a drop of soap solution should be stable on a water ... Later we obtained the same results in a beaker of distilled water, or even in tap water. The observations we made were, in the ...

Pour the mixture into a beaker. Mix 1 teaspoon of soap and 1/8 teaspoon of salt in ... After 5–10 minutes, some liquid, called the filtrate, should have collected in the bottom of the cup.