rocket science

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Across
  1. 4. a thing that can thrust
  2. 7. constant streamlines
  3. 8. first law of motion stays at rest
  4. 10. boost you in the air
  5. 11. speed
  6. 12. to pull something
  7. 13. impulse a sudden strong
Down
  1. 1. driven forward or backwards
  2. 2. takeoff
  3. 3. what makes a jet shake
  4. 5. von Braun the father of space science
  5. 6. of pressure force agents and object
  6. 9. the speed given direction
  7. 12. Robert H. Goddard the father of rocket propulsion