Water Rocket Workshop
A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel—the engine of the rocket—is usually a used plastic soft drink bottle. The water is forced out by a pressurized gas, typically compressed air. It is an example of Newton’s third law of motion.
A water rocket is a chamber, usually a 2-liter soft drink bottle, partially filled with water. Air is forced inside with a pump. When the rocket is released, the pressurized air forces water out the nozzle (pour spout). The bottle launches itself in the opposite direction. The bottle usually has a nose cone for streamlining and fins for stability.
Water bottle rockets are ideal for teaching Newton’s laws of motion. The launch of the rocket easily demonstrates Newton’s third law. Students can see the water shooting out of the nozzle (action) and see the rocket streak into the sky (reaction). Students can also experiment with different pressure levels inside the chamber and different amounts of water. The rocket will not fly very high if it is filled only with air. The air will quickly rush out during the launch, but its mass is very low. Consequently, the thrust produced is also low (Newton’s second law). By placing water in the bottle, the air has to force the water out first before it can leave the bottle. The water increases the mass expelled by the rocket, thereby increasing the thrust.
Workshop Level : Junior Level
Best Suited for : All Interested School Students
Workshop Certification : Smartcircuits Innovation Pvt. Ltd.
Duration : Two Days workshop (6-8 hours per day)
Day 1 (Session 1)
Introduction of Rocket Science
Introduction of Water Rocket
Principles of Water Rocket:-
- Estimation the position of the center of mass
- Aerodynamic Stability
Day 1 (Session 2)
Design of Water Rocket
- Nozzle(Nose Cone)
- Plastic Body
- Pull string for launching
- Connections and Pumping Valves
- Rocket Launcher
- Launch Tube
Day 2 (Session 3)
Day 2 (Session 4)
- Water rocket kit including PVC pipes of different length, connectors, air pump, fins, nose cone material and other necessary equipments.