How does soap clean away grease?
Soap's Spy Mission
How does soap clean away grease?
You know that slippery feeling when you try to wash greasy hands with just water? The grease laughs at the water. It doesn't budge. Water and oil are enemies — they refuse to mix, no matter how hard you rub. So how does a squirt of soap change everything?
Here's the thing about water: its molecules hold hands with each other in tight little clusters, like kids in a circle keeping outsiders away. Oil molecules do the same thing — they huddle together in their own gang. When the two groups meet, they just glare at each other and refuse to shake hands.
