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How the Refrigerator Works

A refrigerator is a big box in the kitchen that keeps our food cold. It has shelves inside to store food. When we open the door, cool air comes out.

A big box in the kitchen with shelves. Cool air.

The refrigerator has a special part called a compressor. The compressor makes the air inside the refrigerator really cold.

A compressor makes the air cold.

The refrigerator also has a part called an evaporator. The evaporator absorbs heat from the food inside the refrigerator, which helps keep it cold.

An evaporator absorbs heat from food, keeping it cold.

To control how cold the refrigerator gets, there is a thermostat. We can adjust the temperature using the thermostat's knob or buttons.

A thermostat controls the temperature. Knob or buttons.

When we put warm food inside the refrigerator, the cool air from the evaporator helps the food cool down quickly.

When we put warm food inside the refrigerator, the cool air from the evaporator helps the food cool down quickly.

The refrigerator also keeps our food fresh by slowing down the growth of bacteria. This helps the food stay good for a longer time.

Refrigerator slows down bacteria growth. Food stays fresh.

Sometimes, the refrigerator makes a sound. It's normal! The sound comes from the motor and the fans working to keep the air cold.

Refrigerator makes sound. Motor and fans working.

Refrigerators are very helpful machines that keep our food fresh and cool. They are an important part of our kitchen!

Refrigerators keep food fresh and cool. Important in kitchen.

Reflection Questions

  • Why is it important to keep our food cold?
  • What happens when we open the refrigerator door?
  • How do refrigerators help us?

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