Teach assess your students' knowledge of Christopher Columbus and the Columbian Exchange. This DBQ explains all of the motivations for the Columbian Exchange. This test includes four sources, multiple choice questions, multiple select questions, categorizing/technology-enhanced question, and constructed response. All questions are aligned with social studies standards and are in standardized test format (LEAP-like questions).NEW VIDEO TO REPLACE ALFRED CROSBY'S COLUMBIAN EXCHANGE VIDEO!INCLUD