How were the planets formed?

After the gaseous cloud called the solar nebula collapsed upon itself due to the strength of its own gravity and formed the Sun, the dust and particles around it clumped together to form the planets. The heat of the Sun melted the ice particlesnearby and eventually these rocks grew larger to form the four rocky planets. Some ice particles were too far away from the Sun to be melted. These ice pieces combined with gases to form the planets called the gas giants.