Y12S R and S

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Across
  1. 2. → Structure built to transport water
  2. 3. → Prediction of future events, especially weather
  3. 4. → Use of machines/computers to perform tasks
  4. 5. → Official warning or notice
  5. 8. → Repaired or brought back to former condition
  6. 9. → Planning and controlling the course of a vehicle
  7. 13. → Estimating/predicting based on existing data
  8. 17. → Military observation to gather information
  9. 19. → Scientific study of weather
Down
  1. 1. → Maintained or kept going over time
  2. 6. → Faster than the speed of sound
  3. 7. → Action of driving or pushing forward
  4. 10. → Cleverness or originality in solving problems
  5. 11. → Large natural/artificial lake used to store water
  6. 12. → Activity or science of flying balloons
  7. 14. → Designed to reduce air resistance
  8. 15. → Relating to the sky or outer space
  9. 16. → Area where the pilot controls an aircraft
  10. 17. → Instrument carried by weather balloon to collect data
  11. 18. → Light aircraft without an engine