Make a launchpad that holds the bottle with the neck downwards, lets you attach the pump and stand behind the bottle. One good method is to plant a spade or garden fork in the ground at a low angle ...

Such projects always hold the potential for entertainingly over-the-top designs, materials ... assessment of his remote-controlled soda bottle rocket launcher as “overengineered”.

Eighth and ninth grade students worked in teams to design, build, and launch water bottle rockets, learning about propulsion and altitude calculation in the process. “Hopefully they're having a ...

The bottle must be made entirely of plastic ... There are many other, more advanced, rocket designs. Some people compete in national competitions. Explore the Internet for inspiration and see ...