Hey kiddo, do you know what snow is? It's like tiny, fluffy ice crystals that fall from the sky when it’s very cold outside.
But have you ever heard of something called "lake-effect snow"? It happens in places where there are big bodies of water, like the Great Lakes in the United States.
Here’s how it works: when it’s cold outside in the wintertime, the water in the lakes stays a little bit warmer than the air. So, when really cold air blows over the lake, some of the moisture in the air turns into snow.
This creates a big cloud of snow that hangs over the lake and can drop a whole bunch of snow in the areas around the lake. This is why the areas around the Great Lakes can get lots of snow even if other nearby areas don't get as much snow.
So, in summary, lake-effect snow happens when cold air passes over a warm body of water and turns into fluffy snow that falls on the areas around the lake. Cool, huh?