How does Soap Work? (With Narration) - Science for Kids | Educational Videos by Mocomi
https://mocomi.com/ presents: How does soap work?
We use soap everyday to do so many things like wash our hands, clothes, utensils..so on and so forth. But do you know how soap manages to clean so well? Learn about the effects of soap with the help of this animated learning module.
Pure water does not have cleaning properties. Therefore we need soaps and detergents to remove oily grime and organic soiling.
Soaps and detergents are surfactants i.e they reduce the surface tension of water allowing it to interact with oil and grease more easily. Soap is made by a process called saponification. This is where a triglyceride chemically joins forces with a strong alkali to fight grime.
Hydrophobic – The triglyceride of a soap molecule is hydrophobic which mean it is attracted to dirt and grime.
Hydrophyllic – On the other hand the alkali head is hydrophyllic which means it attracts water.
When dirt comes in contact with a soap molecule, the hydrophobic tail attaches itself to the dirt. Many soap molecules will attach themselves to the dirt to form a structure called a soap micelle.
Once the soap-grime mixture is released it remains suspended in the water and is washed away when you rinse it with clean water.
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