It is a strong oxidizer. You can prepare this solution ahead of time and store it for future use.
Procedure Put on the safety goggles and gloves.
Use the scissors to cut one of the garbage bags down one side and across the bottom. Open the bag and spread it over the demonstration area. Save the remaining bag for cleanup. Place the graduated cylinder on the open bag. Add from 5 mL to 10 mL liquid soap or dishwashing liquid.