Inner planets differ from outer planets because they have rocky core (excepting Pluto), and the are much smaller than outer planets, which are bigger and take more time to orbit Sun than inner planets because of their location. Outer planets are farther from the Sun than inner planets.
The inner planets' surface materials differ from the outer planets because the inner planets have rocky surfaces and the outer planets have gas surfaces.
The outer planets are mostly composed of gases and the inner planets are mostly made of rock, metals.
As the names suggest, the inner planets are closer to the Sun than the outer planets.
They have rocky surfaces.
The inner planets are smaller and rockier than the outer planets which are made mostly of gases. Plus they are on different sides of the asteroid belt.
The inner planets are Mercury, Venus, Earth and Mars. The outer planets (they are separated by the asteroid belt) are Jupiter, Saturn, Uranus, and Neptune. The outer planets are different than the inner planets because the outer planets are not solid. They are all made up of gas. However, the inner planets are rocky and hard.
none of the inner planets
Inner planets. are inner & outer planets. are outer
The four inner planets are made of rock . The outer planets are made of various gases and condenced gases. Hydrogen being prominante.
The inner planets are Mercury, Venus, Earth, and Mars. They are "inner" because the are the first 4 planets from the Sun.
The four outer planets are gas giants - they are much larger than the four inner planets, and they consist mainly of gas - they don't have a surface on which you can stand.
After the inner planets you get the outer planets.