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 ...

The water bottle rocket demonstrates two of his laws ... The water is much heavier than the empty plastic bottle.

Water rockets are created from plastic bottles, made aerodynamic by nose cones and fins. The rocket is part filled with water, and air is pumped in with a foot pump. When the rocket is released ...

This piece of engineering is so simple and elegant, you’ll want to build a pretty serious water rocket ... cone of your rocket. The main portion of the build is made out of plastic soda bottles ...

To construct their rockets, students used materials such as cardboard, plastic cones, and hot glue. Water served as the propellant, while an air pump pressurized the bottles before launch.

Here's how to fire a plastic pot metres into the air ... the Fizz Bang tub skywards is similar to what propels Water Bottle Rockets upwards. Yan has made an activity guide to show you how to ...