Across
- 3. element that is poisonous
- 5. the chlorine gas destroyed this in the body
- 6. state of the chlorine attack
- 7. the country who launched the first gas attack
- 8. largest howitzer
- 9. the month the battle took place during
- 10. where the battle took place
Down
- 1. the side the Canadians were fighting for
- 2. weapon used for long range attacks
- 3. only ones who held the 3.5 km front line
- 4. cloth soaked in this acted as a gas mask
- 7. later developed due to gas attacks