Rocket Propulsion/Rocket Propulsion Using Liquid Propellant

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Liquid Fuel Rockets are rockets that contain a liquid fuel as well as a liquid oxidiser. In pre-launch the liquid fuel would burn slowly until the oxidiser is released creating a very rapid burn with enough force for liftoff. Liquid fuel rockets can also be controlled through limiting or regulating the fuel and oxygen supplies. The Space Shuttle's large orange tank contains liquid rocket fuel that is used by the Orbiter upon take-off.

[edit] Water Rockets

Great sport (and serious study) can be had using plastic soda bottles, water and compressed air.