Across 3. yellow element used in making gunpowder 4. One of the Russian space dogs and first living passenger in orbit around the Earth 9. ________ I (One): First Earth-orbiting artificial satellite launched by the Soviet Union on October 4, 1957 10. A vehicle or device propelled by one or more engines or motors. 11. also known as KNO3 13. ____________ velocity: The average actual velocity at which exhaust material leaves the open end of a rocket engine 14. _______ Cord: Connects the nose cone to the rocket body in order to keep the rocket together during recovery. 15. ____________ Chamber: An enclosure in which combustion, especially of a fuel or propellant, is initiated and controlled. 16. piece of material that helps the rocket slowly descend back to the Earth. Use it if you're jumping out of a plane. 18. A rocket that has several different engines or sets of engines in stages (2 Words) 20. Engine ____________ - This is how the force from the engine is transmitted to the rocket body to make it move. 22. apparatus consisting of a closed globe with one or more projecting bent tubes

Down 1. Rotary engine in which the kinetic energy of a moving uid is converted into mechanical energy by causing a bladed rotor to rotate. 2. Sir ____________ Newton: English mathematician and physicist remembered for his three laws of motion. 5. _____________-loading cannons: A type of cannon in which warheads are loaded into the backside instead of the front. 6. These are small “straw-like” attachments to the rocket body through which a rod is placed in order to increase stability during launch. (2 Words) 7. A mounted wheel that spins so that it resists movement or change of direction. 8. National Aeronautics and Space Administration abbreviation 9. A motor composed of a segmented motor case loaded with solid propellants, an ignition system, a movable nozzle and the necessary instrumentation and integration hardware. (3 Words) 12. The front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge. 17. An absence of matter, a void, or a state of emptiness. Might clean the carpets too. 19. Ethnic group that originated from modern day Mongolia and parts of Russia and China 21. These are on the back end or bottom of the rocket and help provide stability during ight.