Rockets science

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Across
  1. 4. Robert H. Goddard- He was an engineer and a professer.
  2. 5. A person or thing that thrusts.
  3. 8. The action of an aircraft in becoming airborne.
  4. 10. A compressed inert gas that serves to dispence.
  5. 12. To push forcibly.
  6. 13. of pressure- Is the point where the total sum of pressure.
Down
  1. 1. Composed of or arranged in.
  2. 2. Any various simple or complex tubelike device.
  3. 3. Being in a state of agitation.
  4. 4. To draw with force effort or difficulty.
  5. 6. impulse- Is the product of thrust times duration over the motor.
  6. 7. rapidity of motion.
  7. 9. third law of motion-A force is a push or pull.
  8. 11. Von Braun- A German-American aerospace engineer.