Rocket is filled with water and compressed air and launched vertically.

Projectiles: Newton's Third Law (Demonstration Rockets.) Water Rocket: The Apparatus consists of a hollow plastic rocket. Water is poured into the rocket (using the funnel) and a small hand air pump is attached at the bottom with a sliding lock. When sufficient air has been compressed in the rocket, the pump is detachedwater is ejected at the stern and the rocket shoots to the ceiling. Launch rocket over sink.
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