V-1, A German flying bomb powered by a small jet engine., V-2, A German rocket that traveled faster than sound., Rocket, A vehicle propelled forward by expelled gases., Gunpowder, A powder that burns rapidly to produce explosive force., Newton’s Third Law of Motion, The rule stating every action has an equal opposite reaction., Internal combustion engine, An engine where fuel explodes internally to produce power., Exhaust, Hot gases released from an engine after fuel burns., Nozzle, A tube that narrows to increase the speed of exhaust., Thrust, The pushing force that moves a rocket forward., Thermosphere, A high layer of Earth’s atmosphere far above the surface., Operation Paperclip, A U.S. program that secretly brought German scientists after WWII., Missile, A military rocket designed to deliver explosives..

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