In What Was the Big Bang?, early fluent readers will learn about the leading theory of how our universe came to be. Beautiful, crisp, full-color photographs complement the text and aid readers' comprehension. What Was the Big Bang? features a STEM infographic, sidebars, reading tips for teachers and parents, a table of contents, an activity, a glossary, and an index. Children can learn more about the big bang using our safe search engine that provides relevant, age-appropriate websites. What Was the Big Bang? is part of Jump!'s Cosmos Questions series.