The Outer Planets

What are the Outer Planets? Why might a planet be called a Gas Giant? How werethe seventh eighth and ninth planets discovered? Turn the pages of this bookto loo... » 

What are the Outer Planets? Why might a planet be called a Gas Giant? How werethe seventh eighth and ninth planets discovered? Turn the pages of this bookto look at these three planets far away from the Sun. See how different UranusNeptune and Pluto are from one another. Find out about the weather landformsmoons and more about each planet. «