A great way to review for World War I is to use this class power point game. Seven made up tribes answer questions about World War I. If a team answers their question correctly, a challenge question is given. There are 12 questions along with 12 Challenge Questions. The game ends the unscrambling of the tribes' letters to reveal the names of the major countries in World War I. The 12 questions have an answer key with them but the challenge questions do not.