You flip a switch and the light turns on right away.
But nothing is pouring into the bulb… so what actually moved?

There’s no water.
No fuel.
Just a thin metal wire.

So how does electricity travel through it?
What are electrons doing inside the wire the whole time?
And what’s really happening when a battery or outlet “pushes” the power through?

Let’s slow it down and follow the tiny moving pieces that make everything light up.