How does a refrigerator keep food cold using electricity?

A refrigerator uses electricity to move cold from inside to outside, just like a fan moves air around a room.

Imagine you have a big ice cube in your hand, and it’s melting because it's warm outside. You want to keep that ice cube cold, so you put it in the freezer, which is like a special room that keeps things chilly. A refrigerator works similarly but does this job automatically using electricity.

When you plug in the fridge, electricity starts working inside. It helps move the cold from the inside of the fridge to the outside, kind of like how a vacuum cleaner moves dirt out of your room and into the bag.

Inside the fridge, there's a special part called a compressor, which is like a tiny engine. It works hard to push the cold around, keeping your food nice and chilly. Meanwhile, the back of the fridge gets warm because it’s pushing that cold out, just like how your hands get warm when you hold an ice cube for too long.

So, with the help of electricity, your refrigerator keeps your food cool all day long!