The scientific Method Uses abstract models to help explain how a complex, real world operates. Develops theories, collects and analyzes data to prove the theories Observation, Theory and More observation! Harcourt, Inc. items and derived items copyright o 200l by harcourt, IncHarcourt, Inc. items and derived items copyright © 2001 by Harcourt, Inc. The Scientific Method Uses abstract models to help explain how a complex, real world operates. Develops theories, collects, and analyzes data to prove the theories. Observation, Theory and More Observation!