Any planet inside the asteroid belt is known as a terrestrial planet. The ones located outside of it are called the GAS GIANTS, due to the fact they are large and gassy. Excluding Pluto, Jupiter...
The biggest planet in our solar system is Jupiter with about 318 times more mass than the earth.In order from largest to smallest Jupiter - 317.8 massearth Saturn
9 (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto)Edit: Connor: Technically speaking there are only eight planets in our Solar System, those planets being: Mercury > Venus...