How to make PET Bottle Water Rocket
Short Description: A PET Bottle Water Rocket is a simple science project made from a plastic bottle, water, and air pressure. When air is pumped into the bottle, the pressure pushes the water out and launches the rocket into the air.
Project Story
What I made
I made a PET Bottle Water Rocket, a simple science project that uses air pressure and water to launch a rocket into the sky.
Why I made it
I made it to demonstrate how air pressure and Newton's Third Law of Motion work in a fun and practical way.
What I learned
I learned how air pressure creates thrust, how Newton's Third Law of Motion works, and the importance of safe and accurate construction in science projects.
Materials & Components
PET bottle (for a carbonated drink), rubber stopper, airpump, pin for the ball, water, celluloid board and packing,tape
How to Make It
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1Make a small hole in the rubber stopper, and the pin for the ball is passed. Water is put in the PET bottle about 1/3. The rubber stopper is strongly pushed into the mouth of the PET bottle. Put some air in the PET bottle by air pump. When the pressure in the PET bottle grows more than the frictional force of the rubber stopper and the bottle, the bottle launches.
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