High density, small size.
Inner planets are also known as Terrestial planets which means they all have a rocky surface.
That they all inner planets
figure it out
They are all rocky as opposed to gaseous or ice.
all outer planets aremade of gashave a thick atmospherethey have ringsand they are huge
The inner planets are all rocky planets, whereas the outer planets are gas giants. Pluto is the exception. The outer planets also make 99% of our planets and are outside the asteroid belt.
The outer planets' names are Jupiter, Saturn, Uranus, Neptune, and Pluto. The 4 outer planets closest to the sun are all known as the gas giants. They all have a longer year than the inner planets. And they all are colder than the inner planets.
They all do have gravity, an axis, and all revolve around the sun.
The outer planets consist of Jupiter, Saturn, Uranus, and Neptune. These are all gas giants and, to our knowledge, none of them have a solid surface. They all also are significantly larger than Earth.
The planets closer to the sun are called inner planets they include Mercury Venus earth and mars. All those planets are solids the other planets are made of gas
Moons revolve around planets, not the Sun. Planets revolve around the Sun.
All outer planets have a gaseous atmosphere and are larger than planets the inner planets it also takes them longer to rotate the sun they are typically colder and have more moons.