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 ...

The main portion of the build is made out of plastic soda bottles (2 liter size ... and is then slipped over another bottle that makes up the body of the rocket. The rubber band wraps around ...

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.