The video is being made. Until it arrives, here is what it will say (118 words, about 59 seconds):

Here's Miss Cruz's class, with a battery, two wires and a bulb on every desk.

Donna joins her parts into a loop, and the bulb lights up.

After a minute she touches the bulb, and it feels warm. Drew swaps his bulb for a buzzer, and the buzzer sounds.

But the battery just sits on the desk. So how does the energy get out of the battery, around the loop, and come out as light, heat and sound?

To find out, we will look at what each part of the circuit does, how the energy gets around the loop, and what comes out at the end.

Okay, so are you ready to follow the energy around the loop?

It ends with a ready line. Then pick a reply below — any reply counts.