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Water Rockets

Problem statement:

Student teams will design and construct a water rocket made from a soda bottle or bottles, which will launch one grade “A” large egg into the air at least 25 meters.  The purpose is to keep the egg intact upon returning to earth.

Limitations:

The bottle used to hold the water and to be pressurized cannot be modified in any way.

The maximum height of the rocket cannot exceed 1 meter high not counting the recovery system.

No metal of any kind can be used in the construction of the rocket.

The rockets will only be launched under teacher supervision and according to safety rules established

No spray painting of rockets but acrylic water based paints can be used

The first launch of an untested water rocket will only use air pressure