Making dry ice is an interesting and exciting project that you can easily complete at home or in a laboratory setting. Follow these 13 steps on how to create your own dry ice, and learn about the science behind this impressive substance.

1. Gather materials: Before getting started, collect all of the items needed for the process. This includes a CO2 fire extinguisher, cloth gloves, a pillowcase, stainless steel tongs, safety goggles, a well-ventilated area (preferably outside), and a dry surface to work on.

2. Don safety gear: Put on your cloth gloves and safety goggles to protect your skin and eyes from any potential harm caused by the extremely cold temperatures of dry ice.

3. Choose a well-ventilated location: Select an open area with good airflow as CO2 gas buildup can be dangerous in confined spaces.

4. Prepare the pillowcase: Turn it inside out to ensure there are no loose threads or other debris that might interfere with the process. Spread it out on your dry work surface with an opening for easy access.

5. Familiarize yourself with the CO2 fire extinguisher: Review the instructions provided by the manufacturer so you know how to use it properly.

6. Remove the nozzle from the fire extinguisher: Carefully unscrew or detach the nozzle without discharging any CO2.

7. Open the pillowcase: Do this by spreading apart its opening with one hand while holding onto it firmly with the other hand, creating a pouch-like shape.

8. Align the fire extinguisher’s outlet with the pillowcase opening: Hold both in place using either tongs or gloved hands (given that direct exposure to cold CO2 can cause frostbite).

9. Discharge CO2 into the pillowcase: Carefully squeeze down on the extinguisher’s lever and allow CO2 to flow through its outlet and into the pillowcase.

10. Close the pillowcase opening: As soon as you see a good amount of white smoke forming, let go of the lever and seal off the pillowcase’s opening before tying it into a knot.

11. Shake the bag softly: Gently agitate the contents to break up any large chunks of CO2 while allowing air to disperse throughout.

12. Allow the CO2 inside to transform into dry ice: Wait for a couple of minutes as solid dry ice pellets materialize (this process takes place as compressed CO2 gas expands and cools rapidly).

13. Store your dry ice: Transfer any remaining pellets into a cooler or insulated container for short-term storage, ensuring that it is kept at safe distances from children and pets.

Congratulations! You’ve successfully learned how to make dry ice in 13 easy steps. Remember, when handling dry ice, always exercise caution due to its extreme cold temperatures and potential safety hazards.