Water Rockets

Water rockets are one of Pack 807's favorite hands-on projects. Scouts build a rocket from a plastic soda bottle, decorate it, and bring it to a Pack event for launch-day fun.

The main idea is simple: keep the rocket lightweight, sturdy, and safe. A basic rocket with straight fins and a light nose cone is usually better than a complicated rocket with heavy decorations.

Build a Launch-Ready Rocket

Start with an empty plastic 2-liter soda bottle. The bottle opening points down on the launcher, so leave the mouth of the bottle exactly as-is. Do not cut it, glue it, tape over it, or add anything that could keep it from fitting the Pack launcher.

• Fins: Add three or four straight fins near the bottle opening. Cardboard, craft foam, or corrugated plastic can work well.
• Nose cone: Add a lightweight paper, cardstock, or thin plastic nose cone. Avoid anything hard, sharp, or heavy.
• Decorations: Stickers, markers, colored tape, and light paint are great. Heavy decorations can make the rocket unstable.
• Name label: Add your Scout's name or den so the rocket is easy to find after launch.

Launch-Day Tips

Bring the rocket already built and ready to launch. There usually is not time or space to build one on site. Check the event listing to learn whether to bring water in the rocket or fill it at the event.

Water rocket events can get wet, loud, and busy in the best possible way. Scouts should listen for launch-crew instructions, stay behind the launch line, and wait for permission before retrieving rockets.

Helpful launch-day gear: Sunscreen, water bottles, clothes that can get wet, water shoes, towels, chairs or picnic blankets, and a canopy if the event location allows it. Pack 807 activity shirts are a good default unless the specific event says otherwise.

Safety Reminders

• Adults should help with cutting fins, trimming materials, and using craft knives.
• Do not use glass, metal, rocks, batteries, sharp tips, or heavy parts on the rocket.
• Do not pressurize or launch rockets at home unless you have a safe launcher, open outdoor space, and adult supervision.
• At Pack events, only the launch crew should operate the launcher.

Video Instructions