The 4 M.A.I.N. Causes of WW1: OVERVIEW - Worksheet and Crossword Puzzle Activity Pack consists of a premium worksheet that acts as an overview of the main longterm causes of World War I, together with a crossword puzzle to further test your pupils' knowledge. This WW1 activity pack also includes answer keys for both the worksheet and the crossword puzzle, as well as gray tone versions for easy printing. The 4 M.A.I.N. Causes of WW1: OVERVIEW activity pack is perfect for homework, as a substitute plan or to review knowledge about the four main causes of WWI before a test.