World Works™ brings the world to life. Each four-color, consumable book of the 6-book series features 9 informational articles focused on how things work. Each unit within a book covers one of the following topics: Everyday Things, Law, Health, Food, Technology, or Nature. All categories are covered at each reading level. Each article answers the question, "How Does it Work?" Each informational article includes a graph, chart, or diagram, along with after-reading critical-thinking questions on interpreting charts and graphs.