Recall your discussion of national interdependence in connection with your study of Chapter II.
Report on some of the important scientific and commercial developments resulting from the war; as, for example:
The development of the commercial use of the airplane.
The development of new food supplies.
The production of fertilizer from the nitrogen of the air.
The development of new industries in the United States.
Changes in methods of farming.
What are some changes in education that are likely to result from the war?
Show how the strike of coal miners in 1919 affected the life of the nation.