Description Outer Space How big is the Sun? How big is the Moon? How big are the planets? How big are the moons that orbit planets? How big is Jupiter? How big are asteroids? How big are comets? Where is the largest canyon located? A close-up look at the solar system (...) Amazing Earth Which continent is the largest? Which country is the largest? Which lake is the largest? Which river is the longest? Which waterfall is the tallest? Which cave is the largest? How tall is Mount Everest? How much water does Earth have? How deep is the ocean? Which country has the largest population, China? (...) Humans and Living Things How much blood does the heart pump? How long are human blood vessels? How heavy are human bones? Which animal has the biggest teeth? A close-up look at the body. Which animal is the largest? Which dinosaur was the biggest? Which shark is the largest? Which bird lays the largest egg? How long do trees live? How long do animals live? A close-up look at living things (...) Great Technology How fast is the fastest car? How fast is the fastest train? How fast is the fastest aircraft? What is the largest aircraft? How fast is the fastest ship? How big are supertankers? How much cargo can a ship carry? A close-up look at modes of transportation (...)