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Across 1. The fuel for the "arrows of flying fire" 3. A liquid that provides the oxygen needed to burn the rocket fuel 6. This type of rocket fuel replaced gunpowder in the late 1800's 7. Two or more separate engines and fuel tanks 8. All parts of the universe are under God's ________ 10. Probably the first to rockets 13. Called the "father of the space age"; first to use liquid fuel for rockets 15. The part of the rocket containing the instruments, crew, and life-support systems 17. For a rocket to reach ______, it must be traveling at a speed of 18,000 mph. 18. The push a rocket must have to escape the earth's gravity

Down 2. A fuel that provides thrust 4. The "Star Spangled Banner" describes the ______ ______ of the rockets 5. The oxidizer and fuel are burned here 9. Contains the rocket engine 11. Gases ejected from a craft by burning fuel 12. A few hundred years ago, people thoutht that _____ could carry them to the moon 14. The engine or the whole spaceship 16. Airplane propleeant needs this to burn