Wikipedia
WordMasters
The WordMasters Challenge is an international Language Arts competition for students in grades 3 - 8. The assigned words increase in difficulty at each grade level. The "Challenge" tests take place three times a year in the students' classrooms and are scored on how well the kids are able to use their knowledge of the words to complete twenty analogies. The WordMasters Challenge encourages growth not only in vocabulary, but in critical thinking and verbal reasoning. Nearly 3,000 teams from throughout the United States and several foreign countries participate in this yearly competition.