In What Causes a Supernova?, early fluent readers will learn why some stars explode into supernovas, and what scientists learn about our universe by studying them. Beautiful, crisp, full-color photographs complement the text and aid readers' comprehension. What Causes a Supernova? 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 supernovas using our safe search engine that provides relevant, age-appropriate websites. What Causes a Supernova? is part of Jump!'s Cosmos Questions series.