Homemade Dry Ice for Storage

Unlike ordinary ice from your freezer, dry ice is actually frozen gas. It's called dry ice because it has no liquid form, according to Dry Ice Network. This frozen carbon dioxide is much colder than ice made from water. For this reason, some use it as a Halloween decoration; when placed in bowls and moistened, it melts and releases clouds of spooky looking fog. If you're looking for a home science experiment, making dry ice is an excellent choice. However, it should never be made by children unsupervised.

Small fire extinguisher
Plastic freezer bag
Duct tape
Heavy insulated gloves
Scissors
Small bowls

Instructions

- 1
  Slip the nozzle of a small, household fire extinguisher into a plastic freezer bag. Choose the heavy-duty bags suitable for protecting large roasts and turkeys. You can get small fire extinguishers at home supply and camping stores.
- 2
  Gather the opening of the bag around the base of the extinguisher nozzle, where the nozzle meets the hose. Wrap the bag opening in duct tape, checking for gaps and sealing it air tight.
- 3
  Put on heavy insulated gloves. Carbon dioxide freezes at -109 degrees F and can freezer burn your skin in an instant. Gloves protect your hands from accidents and from handling the ice through the bag.
- 4
  Spray the extinguisher into the bag until it's empty. Fire extinguishers are filled with pressurized carbon dioxide. When sprayed, they release it in the form of dry ice.
- 5
  Quickly twist the bag closed right below the extinguisher nozzle and cut it with scissors. Open the bag carefully and pour the ice into bowls. It will start to melt and give off foggy clouds almost right away.

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