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Weapons
Ships
Dates
100
Germany was the first nation to use this in warfare.
What is poison gas.
100
What where the German submarines called
What is a u-boat
100
When did they use poison gas
What is April 1915
200
A large blimp.
What is a zeppelin.
200
This ship was sunk by German u-boats 
What is lusitania
200
When did President Wilson break of diplomatic relations with Germany
What is January 1917
300
An armored vehicle built to break through enemy lines
What is tanks
300
A group of ships
Convoy
300
Wat is the date of a telegraph that was intercepted from Germany to Mexico 
What is 1917
400
A fast firming weapon 
What is a machine gun
400
A large fleet
What is The great white fleet
400
When was the Lusitania sunk
What is May 7 1915