In Planets, young readers learn a planet is an object in space that orbits a star, is spherical, and is big enough to have its own gravity. Earth is one of 8 planets that orbit the Sun. There are two different types of planets. Terrestrial planets are Earth-like, and Jovian planets are Jupiter-like.
 
Softcover, 8×8 in., 24 pages
Word Count 278,  Lexile Measure 510L
A pronunciation guide is included. Reading Level 1-3, Interest Level 2-5.