What determines raindrop size?

Raindrop size is determined by how much water comes together in the sky before it falls to Earth.

Imagine you're at a playground, and you're collecting marbles in a jar. The more marbles you add, the bigger your jar gets, just like raindrops! In the sky, tiny water droplets are like those little marbles. They bump into each other and join together, making bigger and bigger droplets.

If it's windy up in the clouds, it can stop the droplets from joining together as much, kind of like if you were trying to collect marbles while someone kept shaking your jar. That means the raindrops might stay small.

If the water droplets have time to join together slowly, they’ll get bigger, just like when you take your time adding marbles one by one. But if they fall quickly, they might not get as big before they reach the ground.

So raindrops can be tiny, like a sprinkle from a watering can, or big, like a splash in a puddle, and it all depends on how much water joins together and how long it stays up there!