Water Rokit brings science alive for children of all ages

Maths + Science = Engineering + Water = Fun

Since the birth of Water Rokit in 1983, we have been exciting rocketeers and space cadets into learning about rockets and science. A British family-owned company passionate about bringing science alive for children and schools throughout the world.

Water Rokit is a fantastic educational toolkit for learning about space exploration, rocket launches, and the physics of forces and motion by taking part in practical experiments. I’d highly recommend it as a teaching aid – not only is the Water Rokit a great educational toolkit, but it’s also a really fun way for students to learn without even realising it. And even better, it’s also fun for the adults teaching it too!
Dr Heidi Thiemann - Director of the Space Skills Alliance and Space Project Manager
Dr Heidi Thiemann
Project Manager Cornwall Space and Aerospace Technology Training
The best STEM educational tool on the market!
Dr Simon Foster - Imperial College London
Dr. Simon Foster
Imperial College London
QPRS - Boy pumping Water Rocket

How Water Rokit works

Water Rokit has been designed to launch itself automatically at a set pressure, and is engineered to do this repeatedly. This makes Water Rokit perfect to perform science experiments such as exploring Newton’s Laws of Motion, acceleration and trajectory.

The original Water Rokit is a visual, safe and hands-on product which promotes fun and enthusiasm when teaching children of all ages – it’s why so many schools throughout the world have used Water Rokit as part of their core curriculum since way back in 1983.

The Original Water Rokit
For Education
The Original Water Rokit - For Education – (5 Pack)
The Original Water Rokit - For Education – (10 Pack)

Get your Water Rokit

Available from education suppliers, science museums and shops throughout the world. Or buy today in our online store with different education packs available to suit your size of classroom.

The Science of Water Rokit

A squid propels itself by filling its body with water and ejecting it backwards in order to move forwards. This is the principle used by rocket engineers. Space rockets use fuels that are burned in a chamber shaped rather like a bottle, with the neck pointing backwards. The burning fuel produces a large quantity of gas that is further expanded by the heat generated, and this is ejected through the neck (or nozzle) of the “bottle” (normally called the combustion chamber) at a very high velocity, propelling the rocket in the opposite direction.

The Water Rokit, like the squid, uses water as the driving agent, and compressed air instead of heat to provide the energy.

At launch (just before the brass bung automatically releases) the pressure in the bottle is around 18 x 104 N/m2 (or about 25psi). The water is forced through a nozzle with a cross sectional area of about 1cm2, and this produces a theoretical thrust of around 18 Newtons (about 3.9lbs). As the water is ejected, the Water Rokit gets lighter in weight resulting in an increased acceleration or ‘G’ force. Unlike a space rocket, this period of acceleration happens very quickly, taking approximately 1 second for the water to be fully ejected, at around 3 metres (10 feet) of distance travelled. At this height, the Water Rokit is accelerating at about 9 metres per second (around 20 miles per hour), providing enough energy for the Water Rokit to fly upwards to 30 metres (100 feet).