What is the solar system?
The solar system is in space. The sun is in the middle of all the planets and the planets rotate around the sun. The Earth is also a part of the solar system. The Earth is the 3rd planets closest to the sun. The Earth has only one moon and is an inner planet. Earth is made up of mostly water and contains living things. It takes 365 days for Earth to orbit the sun and 24 hours for Earth to rotate on its axis once.