The document provides instructions for a group project to create a timeline portraying the development of atomic theory. Students must include the name, time period, accomplishments and discoveries about atoms, including any experiments used, as well as a labeled drawing of the atomic model, for at least one of the following scientists: John Dalton, J.J. Thomson, Robert Millikan, Ernest Rutherford, Joseph Moseley, James Chadwick, or William Crookes.