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 ...

Build and launch a rocket powered by a chemical reaction between baking soda and vinegar! This exciting experiment demonstrates how chemical reactions can create pressure, and how that pressure can be ...

Adobe Acrobat is required. 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 ...