Decoration. Once your rocket is built, decorate it! Add glitter or a scary face, or keep it NASA-appropriate with a gleaming white paint job. The only necessary marking is a fill line for your water.

SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres. The bottle must be made entirely of plastic, it must have no sharp points and it must be for a fizzy drink, so ...

Idaho State University's Physics Department students taught the kids a little about physics and showed them how to build ...

Researchers are developing a new type of rocket propellant made of a frozen mixture of water and "nanoscale aluminum" powder that is more environmentally friendly than conventional propellants and ...

And most bottles aren't a great shape for smooth flight. There are many other, more advanced, rocket designs. ... The water bottle rocket demonstrates two of his laws.