This stunt has lots going on: air pressure, a satisfying 'whoosh' noise, a high speed departure and a good soaking if you are standing close. It's classic science that's fun to do as a family or a ...

[Mr. Hart] wanted a quick and easy way to safely launch air-water rockets and came up with a pretty clever system. The core task is to pump air into the partially filled water bottle and then ...

Dr Yan Wong explains the theory behind rocket power, and the children use plastic bottles filled with water and air pumps to see who can get theirs the furthest. The most streamlined rocket shape ...

In the video, the friend's air pump fills the bottom of the bottle with air. After the rocket is filled with water, the air pressure increases, causing the rocket to shoot directly into the sky.