To assemble the stomp rocket, place the rocket on the end of the launcher. Then stomp on the 2-liter bottle to see how high ...

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 ...

Easy to assemble metal water rocket launcher with a 125 PSI ... StratoLauncher IV Ultimate will propel a 2 liter plastic (PET) soda pop bottle over 350 ft. in the sky. Watch the last minute ...

This water rocket launcher lets you do just that ... If you’ve already got a compressor and some empty 2-liter bottles you might also pick up some extra PVC to make this pressurized water ...

If the rocket does fly but not very well, there are things you can adjust. The amount of water makes a big difference. Start with the bottle one quarter full (500ml water in a 2l bottle ...