Gas

Poison Gas by Maddie & Sofie
__Development of Gas__ - who, when, development, advantages & disadvantages - First tear gas grenades were used by the French in August 1914 against the Germans - In October 1914, Germans used shrapnel that had been treated with chemicals - Then Germans developed lethal poison gas in April 1915 against French - 1916 - gas was developed to be used with heavy artillery - began using Phosgene gas instead of chlorine - it rendered troops completely unable to keep fighting and would kill them within 48 hours - September 1917 - Germany developed mustard gas - Poison gas killed about 91,000 people total in WWI __Gas Masks__ - Allied forces developed cotton masks soaked with urine - Later used ammonia - July 1915 - first gas masks developed with respirators (Maddie)
 * did not kill, just incapacitated the enemy so that they were unable to defend themselves
 * effects of gas were instant
 * chlorine gas cylinders - caused choking and destroyed respiratory organs which caused a slow, painful death
 * could only be used when had a favorable wind, sometimes the wind would change direction and cause the death of whoever released the gas (example: September 25, 1915: British released gas, but the gas blew back towards them causing 2,000 causalities)
 * [[image:britishgasmask.jpg]](Sofie)
 * so that it wouldn't be blown back in the wind (like with the British in 1915)
 * Allowed for increase attack range
 * most lethal
 * only needed small amounts
 * stayed active for weeks

Trueman, Chris. "Poison Gas and World War One." __History Learning Site__. 18 Mar. 2009 .

Simkin, John. "Poison Gases." __Spartacus International__. 20 Mar. 2009 .

Photographs: __First World War__. Digital image. [British Gas Mask]. The War to End all Wars. 19 Mar. 2009 .