Explore the smallest particles known to man, with detailed explanations of protons, electrons, and neutrons, the periodic table, and animations explaining the difference between fission and fusion.Reading Level: Upper Elementary and Middle SchoolIn this app, you'll learn about: Parts of an Atom Major Discoveries About the Atom Elements The Periodic Table Fission and Fussion Pros and Cons of Nuclear Energy A Lazer WorldFeatures Include: Interactive 3-D models High-definition video and audio Hi-res photographs, cartoons, and animations Easy-to-read, accessible writing Quizzes, puzzles, and other fun games Plusoptimized for the iPad Retina displayKIDS DISCOVER has been creating award-winning content for kids for over 20 years. KIDS DISCOVER apps are always AD-FREE.Other great apps from KIDS DISCOVER include: American Revolution Ancient Egypt Ancient Greece Cells Civil War Constitution Ecology Energy Extreme Weather Galaxies (FREE) Geography Geology Incas Matter Plants Roman Empire Space Washington D.C. Simple Machines and More!To learn more about us and our mission to inspire kids, feed their natural curiosity, and instill a love of reading and learning, please visit us at www.kidsdiscover.com.