The Solar System

1. A SOLAR SISTEM: is a group of planets and other celestial bodies which orbit a star.

1.1. PLANETS: are celestias bodies which orbit a estar, The Sun.

1.1.1. Rocky and gases planets:

1.1.1.1. ROCKY PLANETS: they have small in size and mainly composed of rocks and metals.

1.1.1.1.1. Mercury: is the closest planet to the sun. It has no atmosphere. The surfaces is covered with craters. Mercury is a rocky planet.

1.1.1.2. GAS PLANETS: they have large size and they are composed of gases and ice.

1.1.1.2.1. Jupiter: is the largest planet in our system and the one with the greatest mass. Its surface is not vivble as it is complety covered by clouds all times.