SPACE. The Universe -- Space exploration -- EARTH. Planet earth -- Tectonic earth -- Earth's resources -- Weather -- Shaping the land -- Earth's oceans -- NATURE. How life began -- The living world -- Invertebrates -- Vertebrates -- Survival secrets -- HUMAN BODY. Body basics -- Fueling the body -- In control -- Life cycle. -- SCIENCE. Matter -- Forces -- Energy -- Electronics -- HISTORY. The ancient world -- The Medieval world -- The age of exploration -- The Modern World.

SPACE. The Universe: The big bang; Galaxies; Star birth; Star death; The sun; The solar system; Inner planets; Outer planets; The Moon -- Space exploration: Astronomy; Mission to the Moon; Exploring the planets -- EARTH. Planet Earth: Inside the Earth; Earth's climate -- Tectonic Earth: Plate tectonics; Volcanoes; Earthquakes -- Earth's resources: Rocks and minerals -- Weather: Hurricanes; The water cycle -- Shaping the land: Caves; Glaciers -- Earth's oceans: The ocean floor -- NATURE. How life began: Timeline of life; The dinosaurs; Tyrannosaurus rex; How fossils form -- The living world: Planet life; Green energy -- Invertebrates: Insects; Butterfly life cycle -- Vertebrates: Fish; Great white shark; Amphibians; Frog life cycle; Reptiles; Crocodile; Birds; How birds fly; Mammals; African elephant -- Survival secrets: Habitats; American desert; Amazon rainforest; African savanna; Coral reef; Animal architects; Predators and prey -- HUMAN BODY. Body basics: Building blocks; The skeleton; Muscle power; The skin -- Fueling the body: From mouth to stomach; The intestines; In the blood; The heart; Fighting germs; Cleaning the blood; Air supply -- In control: Nervous system; Brainpower; How vision works; Inside the ear; Taste and smell; Control chemicals -- Life cycle: A new life; Life in the womb; Growing up; Genes and DNA -- SCIENCE. Matter: Atoms and molecules; atom smasher; Solids, liquids, and gases; The elements; Chemical reactions; Material world -- Forces: Laws of motion; Engines; Simple machines; Flotation; Magnetism; Gravity; Flight -- Energy: Electomagnetic spectrum; Signals from space; Light; Telescopes; Sound; Heat; Electricity; Power network; Radioactivity -- Electronics: Digital world; Robotics -- HISTORY. The ancient world: The first humans; The first towns; Early empires; Ancient Egypt; The pharaohs; Ancient Greece; Ancient Athens; The Roman Empire; Roman society -- The Medieval world: Viking raiders; Fortresses; Wars of faith; World religions; The Ottoman Empire; The Silk Road; Samurai warriors -- The age of exploration: Voyage to the Americas; Ancient Americas; The Renaissance; Shakespeare's theater; Imperial China; Rulers of India -- The Modern World: The trade in enslaved Africans; The Enlightenment; The American Revolution; The French Revolution; The Industrial Revolution; The age of steam; The Civil War; World War I; Trench warfare; World War II; Modern warfare; The Cold War; The 1960s; The 21st century -- Reference -- Glossary -- Index -- Acknowledgments.