How a tap works?

A tap is like a water gate that lets water flow when you turn it on.

When you twist the handle of a tap, it moves a part inside called a valve. This valve acts like a door, when you turn the handle, the door opens and lets water come through. When you stop turning it, the door closes again and stops the flow.

Water lives in big pipes underground, just like how juice flows from a bottle into your cup. These pipes are connected to the tap, and when the valve opens, water rushes through the pipe and out of the tap, just like juice flowing from a bottle when you tilt it.

Imagine you're pouring water from a jug into a glass. If you lift the jug up, water keeps coming out; if you put it down, the flow stops. Turning off the handle of the tap is like putting the jug back, it blocks the path of the water and makes it stop flowing.

So every time you turn on the tap, you're opening a gate for water to come through, simple as that!