Bradley and justin

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Across
  1. 4. the speed of something in each direction.
  2. 5. wind airflow.
  3. 7. it can be propelled to a great height or distance
  4. 9. taking place along constant streamlines; not turbulent.
  5. 10. third law of motion Every action has an equal and opposite reaction.
  6. 11. of pressure It is the total some of a pressure.
  7. 13. the force against an object.
Down
  1. 1. it can propel something.
  2. 2. a small rocket engine
  3. 3. the force of thrust propelling in the air.
  4. 6. to push something in a certain direction.
  5. 8. von Braun he is a rocket engineer and rocket scientist.
  6. 12. impulse it is a change of direction.
  7. 13. Robert H. Goddard