Colloid
A colloid is like a group of teeny tiny particles that are mixed into a liquid. Imagine if you have a bowl of water and you mix in some flour, it will make a thick mixture, right? That's a colloid!
But instead of flour and water, colloid can be made of other things like tiny particles of gold, silver or even little bits of dirt mixed in water. These tiny particles in the colloid are so small that you can't even see them with your eyes, but they are big enough to scatter light and make the liquid look cloudy or opaque.
The particles in a colloid are too small to settle to the bottom like sand in water, and too big to dissolve like sugar in water, so they stay suspended in the liquid. Think of it like floating jelly beans in a jar of water.
Colloids also have some cool properties like being able to change their color or viscosity (thickness) when you add other things to them. They're used in many things we use every day like milk, paint, shampoo, and even medicine! Scientists are still learning a lot about them and how they work, but one thing's for sure - colloids are super interesting!
But instead of flour and water, colloid can be made of other things like tiny particles of gold, silver or even little bits of dirt mixed in water. These tiny particles in the colloid are so small that you can't even see them with your eyes, but they are big enough to scatter light and make the liquid look cloudy or opaque.
The particles in a colloid are too small to settle to the bottom like sand in water, and too big to dissolve like sugar in water, so they stay suspended in the liquid. Think of it like floating jelly beans in a jar of water.
Colloids also have some cool properties like being able to change their color or viscosity (thickness) when you add other things to them. They're used in many things we use every day like milk, paint, shampoo, and even medicine! Scientists are still learning a lot about them and how they work, but one thing's for sure - colloids are super interesting!