The are four interior planets: Mercury, Venus, Earth and Mars. They are smaller then the exterior planets,they don't have any satellites, except Earth that has one and Mars has two.
The interior planets don't have any rings and they are made of rock.
MARS
It is the last interior planet. It has two satelites, Phobos and Deimos.
Its atmosphere is made of carbon dioxide and nitrogine.The temperature in Mars is about -87ºC during the polar winter to highs of up to -5ºC in the summer.
We take 1 year to orbit the Sun, Mars takes 2 years, doble.
VENUS
Its an Interior planet and it has no satelites.
Venus is the most dangerous planet of all the interior planet. The are sulphuric acid storms every day, winds that reach 400 miles/h, volcano erupcions and a very dangerus temperature, reaching the 480ºC.
They say that Venus was like Earth before, a planet with water, but because of the temperature the climate changed and now it dosen't look like Earth at all.
MERCURY
It is a interior planet.
Mercury is the closest planet to the Sun and the smallest planet in the solar sistem, without counting the nano planets.
It takes 88 days to orbit the Sun and 176 to rotate on its axis.
It is like our satelite, the Moon, it has a lot of craters on it. You can see them so much, because their atmosphere is very weak.
It has no satellites.
