What are microphysical interactions?

Microphysical interactions are when tiny things bump into each other and change how they look or behave.

Imagine you're playing with a bunch of marbles in a bag. When you shake the bag, the marbles bounce off each other, sometimes sticking together, sometimes moving apart. That's like what happens with tiny particles, like water droplets or ice crystals, when they meet up in the sky.

In the sky, there are lots of little things floating around, like water droplets, ice crystals, and even dust. When these tiny things bump into each other, they might stick together or break apart, changing how big or small they get.

This is why clouds can look fluffy one moment and rainy the next, because those tiny particles are playing their marble game up in the sky!

Think of a snowflake. It starts as a tiny ice crystal, but as it bumps into other droplets, it gets bigger and more complicated, like adding more marbles to your bag, making the shape more interesting.

So microphysical interactions are just tiny things meeting up and changing how they look or behave, like marbles in a bag!