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Rockets Educators' Guide pdf - ER - NASA

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DISCOV<strong>ER</strong>Y<br />

rocket<br />

Pronunciation: \rä-kət\ noun (It rocchetta)<br />

A vehicle, typically cylindrical, containing liquid or solid<br />

propellants which produce hot gases or ions that are ejected<br />

rearward through a nozzle and, in doing so, creates an<br />

action force accompanied by an opposite and equal reaction<br />

force driving the vehicle forward. Because rockets are selfcontained,<br />

they are able to operate in outer space.<br />

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