Practise and challenge your friends! Download the Water bottle Rockets PDF(378 Kb). Adobe Acrobat is required. SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres. The ...

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 ...

In this case, though, we’ll respectfully disagree with [Zach Hipps] assessment of his remote-controlled soda bottle rocket launcher ... even launch a two-stage water rocket?

Instead carefully drive the pump's needle through the cork so you can add air ... Once the bottle is empty of water, its flight starts to slow. If the rocket doesn't fly at all, check two things ...