4This book describes the weapons that were used and invented during World War II, including tanks, planes, and the atomic bomb. In addition to historic photos, this book includes a table of contents, two infographics, critical thinking questions, two A Closer Look special features, a reading comprehension quiz, a glossary, additional resources, and an index. This Focus Readers title is at the Voyager level, aligned to reading levels of grades 5-6 and interest levels of grades 5-9.