Wet is when something has water on it or inside it, making it feel slippery and soggy.
Imagine you're playing in a puddle after a rainstorm. When your feet go into the puddle, they get wet, that means water has moved from the puddle to your feet.
What makes things wet?
When water touches something, like your socks or a toy, it can make them feel different. If you leave your shoes in the rain, the water goes inside and makes them wet, just like when you drop an icecube into a glass of juice, the juice gets colder and the ice gets wet.
How do we know something is wet?
You can tell something is wet by touching it. If your hand feels slippery or squishy, that's probably because water is on it. Like when you take a sponge out of the sink, it’s all soggy and wet, ready to clean up the mess!