Store propane canisters away from sources of heat and sparks. Balloon fabric is flammable. The launcher should be operated outdoors only. Students not involved in the launching should be kept at least 10 feet from the launcher. A fire extinguisher should be near when using the launcher.
Students rotate to three stations supervised by adults.
The postcard is placed in a zip lock bag. A hole is punched in the bag. The bag is tied to the loop at the top of balloon with kite string. Please complete the following information and return this postcard so the project can be completed. The balloon is inflated with a box fan or shop vacuum, and checked for unglued seams, holes, and tears.