Geyser

Okay, so imagine you have a big pot of cold water on the stove. You turn on the heat, and eventually, the water starts to get hotter and hotter.

Now, if you keep heating the water for long enough, it will eventually start to boil. That means it gets so hot that it starts to turn into steam.

But when the water is really hot and right on the edge of boiling, something cool can happen. It can start to make popping noises and bubbles can form at the bottom of the pot.

Suddenly, WHOOSH! Water shoots straight up into the air like a fountain! That's a bit like a geyser.

A geyser is a natural hot spring that shoots water and steam high up into the air. It's like Mother Nature's way of making a big water fountain.

Geysers happen because there's heat deep beneath the ground. This heat warms up water and turns it into steam. But the steam can't escape because it's trapped by all the water on top of it. So over time, the pressure builds up and builds up, until finally, WHOOSH! The steam bursts out, taking some of the water along with it.

Geysers are really cool to see, but they can be dangerous too. That's why it's important to always watch them from a safe distance!