Hydrogen and Helium.
Inner planets are mostly rock and outer planets are mostly gas.
The main Asteroid Belt.
the inner planets are closest to the sun and the outer planets are farthest from the sun { Answered by a grade 4 student}
The main difference is that the inner planets are smaller and are nearer the sun te outer planets are after the earth starting with Mars and ending with Pluto.
Jupiter is an outer planet, also called a Gas Giant. The Main Asteroid Belt divides the inner planets from the outer planets.
The main difference between the orbits of inner and outer planets is their distance from the Sun. Inner planets (Mercury, Venus, Earth, Mars) have shorter orbits and are closer to the Sun, while outer planets (Jupiter, Saturn, Uranus, Neptune) have longer orbits and are farther away from the Sun. Additionally, outer planets are larger and predominantly composed of gas and ice, while inner planets are smaller and have rocky surfaces.
the inner planets are closest to the sun and the outer planets are farthest from the sun { Answered by a grade 4 student}
amonia, hydrogen,
helium and hydroen
The main factor that separates the inner rocky planets from the outer gas planets is their composition and distance from the Sun. The inner rocky planets, including Mercury, Venus, Earth, and Mars, are closer to the Sun and have solid surfaces made primarily of rock and metal. The outer gas planets, like Jupiter, Saturn, Uranus, and Neptune, are located farther from the Sun and are composed mostly of gases and liquids, with no solid surface.
Outer planets are made up of gas and dust particles, and are farther out due to their gravitational attraction to the sun, while inner planets tend to be rocky and smaller.
The planets revolve in elliptical orbits. The inner planets have orbits 230 million km or less from the Sun. The outer planets have orbits 775 million km or greater.