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Extreme Weather Solutions Activity for Kids

Air Conditioner DIY

  • Duration: 30-60 min
  • Difficulty: Medium
  • Cost: $0 to $20

Build a cooling device to reduce the impact of a heat wave!

Material List

  • 1Styrofoam cooler
  • 4Frozen water bottles
  • 1Plastic 90-degree tube
  • 1Small household fan
  • 1Marker
  • 1Serrated steak knife (Adult use only!)
  • 1Roll of tape and streamers (optional)


  • 1Place the angled tube on top of the cooler lid and trace it with a marker.
  • 2Then place the fan face down on the cooler lid and trace it as well.
  • 3Ask an adult to carefully cut out the circles you just traced.
  • 4Place all the frozen water bottles in the cooler and put on the lid.
  • 5Insert the 90-degree tube into its hole.
  • 6Lay the fan on top of the hole you cut for it, facing inside the cooler.
  • 7Tape short streamers around the edge of the tube opening (optional).
  • 8Plug in the fan. You should feel cool air coming out through the tube!
  • Note:Exact instructions may vary based on the size of your cooler, fan, and tube.

How It Works

Air that is blown into the cooler by the fan is cooled by the ice inside the cooler. That air is then forced upward and out through the tube as more air is pushed inside by the fan. The air that is blown out through the tube is cooler than the air that the fan blows inside.

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