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What happens after the kettle switch clicks? This catchy educational song shows how a closed circuit powers an insulated heater, heat circulates through the water, and a thermostat cuts the current when boiling begins. It also explains why the white mist is made of tiny droplets—and why a hot kettle is for an adult to handle.
Original explanations based on the cited sources.
Electricity
Electric current is a directed flow of electric charge. Electrons carry it in metal wires, while ions can carry it in solutions.
Sources
Electric circuits
A circuit connects electrical parts, such as a battery, wires and a lamp. In a simple battery circuit, current flows when the path is closed.
Sources
Text from the recording’s subtitles.
Song lyrics
Qui réveille la bouilloire ? Un clic !
Un adulte met l'eau fraîche au repère.
La pose sur son socle et presse le bouton.
La lampe brille, le circuit est fermé.
Le courant passe dans l'élément chauffant isolé.
Sa résistance transforme l'énergie en chaleur.
Caché, il devient de plus en plus chaud.
Clic — l'énergie électrique devient chaleur.
La chaleur entre et l'eau tourbillonne.
Glou-glou — maintenant l'eau bout.
Puis clic — le courant se coupe tout seul.
Un doux chuintement monte depuis le fond.
De petites bulles poussent tout en bas.
L'eau tiède monte, la plus froide descend.
Ce mouvement répand toute la chaleur.
Près du bec flotte une brume de gouttelettes.
Les bulles grossissent, toute l'eau bout.
Chaleur ou vapeur déclenche le thermostat.
Clic — le circuit s'ouvre, la lampe s'éteint.
Clic — l'énergie électrique devient chaleur.
La chaleur entre et l'eau tourbillonne.
Glou-glou — maintenant l'eau bout.
Puis clic — le courant se coupe tout seul.
Un adulte verse l'eau avec soin dans la tasse.
Même éteinte, la bouilloire reste chaude.
Language version lyrics
What wakes the kettle? Just one click!
An adult fills cool water to the line.
Sets it on the base and flips the switch.
The light shines; now the circuit is closed.
Current flows through the insulated heater.
Its resistance turns electrical energy to heat.
Though out of sight, it starts to grow hot.
Click — electric energy changes to heat.
Heat flows in; the water circles round.
Bubble-bubble — now the water boils.
Click — the current switches itself off.
A quiet shushing rises from below.
Tiny bubbles grow along the bottom.
Warmer water rises; cooler water sinks.
That swirling motion spreads the heat.
At the spout: a mist of tiny droplets.
Bubbles grow; the water starts to boil.
Heat or steam triggers the thermostat.
Click — the circuit opens; light goes dark.
Click — electric energy changes to heat.
Heat flows in; the water circles round.
Bubble-bubble — now the water boils.
Click — the current switches itself off.
An adult safely fills the waiting cup.
Though switched off, the kettle remains hot.
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