Artec Artec Fly High Water Rocket for Ages 8+
– Decorative Stickers
– Yellow Foam Pad
– Pad Connector
– Wing/Fin Connector
– Launch Platform
– Bottle Cap
– Study Guide
What is a rocket, and what makes it fly?
In a real rocket, you have fuel and an oxidant to burn. They enter a chamber inside the engine, and explode! The force created by the explosion is expelled out the back, and the rocket is thrust forward.
Rocket engines work according to Newton’s Third Law of Motion. Every action has an equal and opposite reaction. Engines push rockets forward by expelling their exhaust in the opposite direction.
This type of rocket uses water as its fuel, and compressed air as an energy source. Air, as you may have guessed, is light. It won’t bog the rocket down, and for its size, it holds a lot of energy. Water is dense, and it makes an excellent fuel because of it. It creates a great deal of inertia as the water is thrown backwards out of the tail.
When launching, the rocket’s mass is mostly water. The rocket’s body has a lot of stored energy because of how tightly the air is packed in. When you finally launch the rocket and allow the water out, the compressed air pushes down on the water, and the water pushes upward onto the compressed air. The upward force conveyed by the process forces the entire bottle to go!