These heavily armored vehicles were used to advance into enemy territory without taking damage from gunfire.
Tanks
What were the names of the two main alliances that fought each other during WWI?
The Central Powers and the Allied Powers (or Triple Entente)
The agreement between two countries to back one another up if they were attacked is referred to as this term
What was the name of the secret message that Germany sent to Mexico on hopes of them attacking the United States?
The Zimmerman Telegram
The space between trenches on the battlefield was known as what?
No man’s land
This new invention made it possible to sink an armored warship with torpedoes while remaining undetected. .
Submarines
Which country joined the Allied Powers years after the war had begun?
The United States of America
The death of this Austrian Archduke is widely considered to be the "spark" that started WWI.
Franz Ferdinand
This sinking of this passenger ship played a very important factor in America's decision to join WWI
Lusitania
A common disease that came about in the trenches?
Trench Foot
These machines were originally made just to observe enemy troops. This changed in 1916 when the Germans armed them with machine guns. They were also later used to drop bombs on enemy cities.
Airplanes
What were three countries that were part of the Central Powers?
Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria (only need to list 3)
The competition for overseas colonies and territories among European powers in the late 19th and early 20th centuries was known as this
Imperialism
An ______ race is when two or more countries start to build up their armies and develop weaponry to keep up with each other.
arms
How were the conditions of the trenches?
Muddy and uncomfortable
This invention caused soldier’s eyes, skin, and lungs to blister. While this new invention was not responsible for many deaths during the war, those exposed to it faced severe long-term health problems.
poison gas / mustard gas
Which of the two main alliances is depicted in green on the map below?
The Allied Powers
People influenced by this main cause in World War I thought that their nation was better than the others that they were fighting against.
Nationalism
Negotiated with the Allied powers WW1 was able to come to a close in 1919. What was the name of the document that was drawn up against Germany?
The Treaty of Versailles
What is the device used to help keep the soldiers' eyes and lungs healthy?
Gas Mask
The sanitary napkins used by nurses in WWI were made out of a new type of material that was cheaper and more absorbent than normal cotton. What was the name of this material?
Cellucotton
Which of the two main alliances is depicted in purple on the map below?
The Central Powers
Before the war, an arms race had begun between countries. Each country tried to build up its number of soldiers as well as warships. This is an example of which main cause?
Militarism
After the death of their Archduke, Austria-Hungary declared war on this country, which marked the beginning of World War I.
Serbia
What were the trenches made out of in WW1?
Sandbags and wood