The Solar System
Grade 3-4, Earth & Space, The Solar System UnitThe book The Solar System takes the reader on an imaginary trip through our solar system. It provides details about the Sun, planets, moons, asteroids, dwarf planets, and comets. Data tables contain each planet's diameter, distance from the Sun, periods of rotation and revolution, and number of moons, allowing the reader to compare the planets. The book highlights the fact that Earth is unique because it is the only known habitable place in the solar system.