Why Do We Call Pluto A Dwarf?

Is Pluto the new member of the Seven Dwarves? Nah, not really. Scientists call it a dwarf for a special reason and you'll know what that is if you open this astronomy book for kids. Introducing children to astronomy can be pain-free if you use the right reference tools that your child can appreciate. An example would be this child-friendly picture book. Grab a copy now!