WW1 Technology

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Across
  1. 3. Canada’s greatest flying ace was Billy
  2. 4. ____ gas first used at the Battle of Ypres
  3. 7. against British positions to flush soldiers out of their trenches
  4. 8. Used for reconnaissance
  5. 9. Roy ____ shot down the Red Barron
  6. 10. Wilfred ____ wrote Dulce et Decorum Est
  7. 12. good to launch into enemy trench with no risk to self
  8. 14. very hard to re-load in the trenches due to the mud
  9. 16. _____ Explosion in Dec 6 1917 leveled Halifax (2 ships collided)
  10. 17. ____ gun 400 to 600 rounds per minute
Down
  1. 1. German used U-boats to destroy ships
  2. 2. ____ rifle was Canadian made and accurate
  3. 5. useless • horses could not function in the mud/trenches
  4. 6. easy target for U-boats
  5. 11. first used by the British at the Battle of Somme
  6. 13. Sinking of the ____ brought the US into the war in 1917
  7. 15. The Red ____ was Germany’s greatest flying ace