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Propulsion
 
The X-15 launches with its rocket engine ignited

Rocket engine propulsion made this airplane fly faster than the speed of sound. Image Credit: NASA

       the force that pushes forward or drives an object forward



Sentences:
NASA is studying new types of propulsion to travel farther and faster into space.

We built a toy rocket that used baking soda and vinegar to make its propulsion.



More Information:
http://www.grc.nasa.gov/WWW/K-12/airplane/bgp.html   →
http://spaceflight.nasa.gov/shuttle/rtf/images_coleman/propulsion_systems.jpg   →


 
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