Gas GIANts
The four gas giants consist of Jupiter, Saturn, Uranus and Neptune. As their name suggests, these planets are massive and are mostly gaseous planets. Unlike the terrestrial planets, the Gas Giants do not have solid, rocky surfaces. These planets all have rings around them, the most well defined being Saturn. They are the farthest from the sun. Pluto is not included in either Gas Giants or the Terrestrial Planets because its features do not match up for either.
(Picture from http://kesspace.wikidot.com/group-5-the-gas-giant-planets)