Causes of World War 1 for 7th Grade

What is an alliance?

WW1 was also called....

This was the first country to use submarine warfare in World War I:

Britain and France declared war when Germany invaded this country (that Britain had sworn to protect): 

Which was NOT a reason for the first world war?

What is the stretch of land between trenches called?

Which three countries made up the Central Powers at the beginning of the war?

On which date did the first world war begin?

Germany's plan for conquering the Allied Powers was called:

This country was the main aggressor of World War I:

When this archduke was assassinated, it sparked WW1:

In which country was Archduke Ferdinand assassinated?