Combines introduces children to the world of modern farm equipment- showing how the most complex machines on the farm work to harvest crops. This book is filled with colorful action photographs, fun illustrations and a cast of cartoon equipment characters. Students can follow the timeline of harvesting equipment from the sickle to the mechanical reaper, international harvester, and eventually the modern-day combine. As a companion to lessons on grain crops such as corn and wheat, students will learn the process of harvesting these crops.