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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

kno3 alternative

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Re: kno3 alternative

Post by Water Rocket Expert » Sun Feb 23, 2014 9:51 pm

I agree but it is still hard to get.

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