Sol is like a magic potion that has tiny little particles floating around in it. But these particles are so small that you can't see them with your eyes. It's like when you look up at the sky and you see lots of little stars, but they're really far away so they look like tiny dots.
These particles in the sol are called colloids. Colloids are special because they don't dissolve in the sol like sugar dissolves in water. Instead, they just float around and stay suspended. It's like if you put a bunch of little toys in a jar of water and shook it up. The toys would move around and spread out, but they wouldn't disappear like the sugar does in water.
Now, the sol itself can be made from all sorts of things like water, gelatin, paint, and even blood. Yes, that's right, blood can be turned into sol! But don't worry, it's not dangerous. Scientists use sols for all sorts of things like making medicine, cleaning products, and even to study things to help us understand the world around us.
So, imagine you have a jar of sol and you want to know what's in it. You can't see the particles with your eyes, so scientists use special machines to measure the size of the particles and how they move around. This helps them figure out what's in the sol and how it can be used to help people or make new things.
In summary, sol is like a magic potion with tiny little particles called colloids that stay suspended in it. It can be made from lots of different things and is used by scientists to make new discoveries and help people.