Pluto

See in this diagram shows that that Pluto is a dwarf planet.

Pluto is not a planet because its to small and goes around the sun on a different angle than all the other planets

Our Solar System

In our solar system there are 8 planets there is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.  The biggest planet is Jupiter and the smallest planet is Mercury.  The smallest planet was considered to be Pluto, but now Pluto isn't a planet anymore.      

Jupiter Compared To Earth

Earth compared to Jupiter
clearly Jupiter is way bigger than

Jupiter is the biggest planet in our solar system.
Jupiter weighs an amazingly 1 898 130 000 000 Billion KG's