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 ...

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 ...

The problem with a lot of these water bottle rocket projects is that they leak where the bottle meets the launcher. In most cases this is a good thing as it’s almost impossible to build up ...

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

With a water bottle and some industrial duct tape ... of teamwork and learning was evident as students tested their rocket designs. Some soared high, while others fell short, but each launch ...