Orbiting closest to our sun, Mercury is about the size of Earth's moon. Its gray, wrinkly surface is covered in craters and cliffs. Early readers discover new vocabulary about Mercury's geography, place in the solar system, and latest spacecraft to visit it.

A search-and-find feature reinforces new concepts to build reading success while close-up images captivate young astronomers. A great early STEM book to inspire science learning for kindergartners and first graders.